Publications


Radon backgrounds in the DEAP-1 liquid-argon-based Dark Matter detector

ArXiv (0)

P-A Amaudruz, M Batygov, B Beltran, K Boudjemline, MGBBCT Caldwell, M Chen, R Chouinard, BT Cleveland, D Contreras, K Dering, F Duncan, R Ford, RGF Giuliani, MGVV Golovko, P Gorel, K Graham, DR Grant, R Hakobyan, AL Hallin, P Harvey, C Hearns, CJ Jillings, M Kuźniak, I Lawson, O Li, J Lidgard, P Liimatainen, WH Lippincott, R Mathew, AB McDonald, T McElroy, K McFarlane, D McKinsey, A Muir, C Nantais, K Nicolics, J Nikkel, T Noble, E O'Dwyer, KS Olsen, C Ouellet, P Pasuthip, T Pollmann, W Rau, F Retiere, M Ronquest, P Skensved, T Sonley, J Tang, E Vázquez-Jáuregui, L Veloce, M Ward

The DEAP-1 \SI{7}{kg} single phase liquid argon scintillation detector was operated underground at SNOLAB in order to test the techniques and measure the backgrounds inherent to single phase detection, in support of the \mbox{DEAP-3600} Dark Matter detector. Backgrounds in DEAP are controlled through material selection, construction techniques, pulse shape discrimination and event reconstruction. This report details the analysis of background events observed in three iterations of the DEAP-1 detector, and the measures taken to reduce them. The $^{222}$Rn decay rate in the liquid argon was measured to be between 16 and \SI{26}{\micro\becquerel\per\kilogram}. We found that the background spectrum near the region of interest for Dark Matter detection in the DEAP-1 detector can be described considering events from three sources: radon daughters decaying on the surface of the active volume, the expected rate of electromagnetic events misidentified as nuclear recoils due to inefficiencies in the pulse shape discrimination, and leakage of events from outside the fiducial volume due to imperfect position reconstruction. These backgrounds statistically account for all observed events, and they will be strongly reduced in the DEAP-3600 detector due to its higher light yield and simpler geometry.


A Search for Astrophysical Burst Signals at the Sudbury Neutrino Observatory

ArXiv (0)

B Aharmim, SN Ahmed, AE Anthony, N Barros, EW Beier, A Bellerive, B Beltran, M Bergevin, SD Biller, K Boudjemline, MG Boulay, B Cai, YD Chan, D Chauhan, M Chen, BT Cleveland, GA Cox, X Dai, H Deng, JA Detwiler, M DiMarco, MD Diamond, PJ Doe, G Doucas, P-L Drouin, FA Duncan, M Dunford, ED Earle, SR Elliott, HC Evans, GT Ewan, J Farine, H Fergani, F Fleurot, RJ Ford, JA Formaggio, N Gagnon, JTM Goon, K Graham, E Guillian, S Habib, RL Hahn, AL Hallin, ED Hallman, PJ Harvey, R Hazama, WJ Heintzelman, J Heise, RL Helmer, A Hime, C Howard, M Huang, P Jagam, B Jamieson, NA Jelley, M Jerkins, KJ Keeter, JR Klein, LL Kormos, M Kos, C Kraus, CB Krauss, A Krueger, T Kutter, CCM Kyba, R Lange, J Law, IT Lawson, KT Lesko, JR Leslie, I Levine, JC Loach, R MacLellan, S Majerus, HB Mak, J Maneira, R Martin, N McCauley, AB McDonald, SR McGee, ML Miller, B Monreal, J Monroe, BG Nickel, AJ Noble, HM O'Keeffe, NS Oblath, RW Ollerhead, GDO Gann, SM Oser, RA Ott, SJM Peeters, AWP Poon, G Prior, SD Reitzner, K Rielage, BC Robertson, RGH Robertson, MH Schwendener, JA Secrest, SR Seibert, O Simard, JJ Simpson, D Sinclair, P Skensved, TJ Sonley, LC Stonehill, G Tesic, N Tolich, T Tsui, RV Berg, BA VanDevender, CJ Virtue, BL Wall, D Waller, HWC Tseung, DL Wark, PJS Watson, J Wendland, N West, JF Wilkerson, JR Wilson, JM Wouters, A Wright, M Yeh, F Zhang, K Zuber

The Sudbury Neutrino Observatory (SNO) has confirmed the standard solar model and neutrino oscillations through the observation of neutrinos from the solar core. In this paper we present a search for neutrinos associated with sources other than the solar core, such as gamma-ray bursters and solar flares. We present a new method for looking for temporal coincidences between neutrino events and astrophysical bursts of widely varying intensity. No correlations were found between neutrinos detected in SNO and such astrophysical sources.


A search for ttbar resonances in the lepton plus jets final state with ATLAS using 4.7 fb^{-1} of pp collisions at sqrt{s} = 7 TeV

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ATLAS collaboration

A search for new particles that decay into top quark pairs (ttbar) is performed with the ATLAS experiment at the LHC using an integrated luminosity of 4.7 fb^-1 of proton-proton (pp) collision data collected at a center-of-mass energy sqrt(s)=7 TeV. In the ttbar --> WbWb decay, the lepton plus jets final state is used, where one W boson decays leptonically and the other hadronically. The ttbar system is reconstructed using both small-radius and large-radius jets, the latter being supplemented by a jet substructure analysis. A search for local excesses in the number of data events compared to the Standard Model expectation in the ttbar invariant mass spectrum is performed. No evidence for a ttbar resonance is found and 95% credibility-level limits on the production rate are determined for massive states predicted in two benchmark models. The upper limits on the cross section times branching ratio of a narrow Z' resonance range from 5.1 pb for a boson mass of 0.5 TeV to 0.03 pb for a mass of 3 TeV. A narrow leptophobic topcolor Z' resonance with a mass below 1.74 TeV is excluded. Limits are also derived for a broad color-octet resonance with Gamma/m = 15.3%. A Kaluza-Klein excitation of the gluon in a Randall-Sundrum model is excluded for masses below 2.07 TeV.


Boosted objects: a probe of beyond the Standard Model physics

ArXiv (0)

A Abdesselam, EB Kuutmann, U Bitenc, G Brooijmans, J Butterworth, PBD Renstrom, DB Franzosi, R Buckingham, B Chapleau, M Dasgupta, A Davison, J Dolen, S Ellis, F Fassi, JFMT Frandsen, J Frost, T Gadfort, N Glover, A Haas, E Halkiadakis, K Hamilton, C Hays, C Hill, J Jackson, C Issever, M Karagoz, A Katz, L Kreczko, D Krohn, A Lewis, S Livermore, P Loch, P Maksimovic, J March-Russell, A Martin, N McCubbin, D Newbold, J Ott, G Perez, A Policchio, S Rappoccio, AR Raklev, P Richardson, GP Salam, F Sannino, J Santiago, A Schwartzman, C Shepherd-Themistocleous, P Sinervo, J Sjoelin, M Son, M Spannowsky, E Strauss, M Takeuchi, J Tseng, B Tweedie, C Vermilion, J Voigt, M Vos, J Wacker, J Wagner-Kuhr, MG Wilson

We present the report of the hadronic working group of the BOOST2010 workshop held at the University of Oxford in June 2010. The first part contains a review of the potential of hadronic decays of highly boosted particles as an aid for discovery at the LHC and a discussion of the status of tools developed to meet the challenge of reconstructing and isolating these topologies. In the second part, we present new results comparing the performance of jet grooming techniques and top tagging algorithms on a common set of benchmark channels. We also study the sensitivity of jet substructure observables to the uncertainties in Monte Carlo predictions.


Comparison of Three-jet Events in Proton-Antiproton Collisions at Center-of-mass Energy 1.8 TeV to Predictions from a Next-to-leading Order QCD Calculation

ArXiv (0)

D Acosta, T Affolder, MG Albrow, D Ambrose, D Amidei, K Anikeev, J Antos, G Apollinari, T Arisawa, A Artikov, W Ashmanskas, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, WH Bell, G Bellettini, J Bellinger, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, A Bocci, A Bodek, G Bolla, A Bolshov, D Bortoletto, J Boudreau, C Bromberg, E Brubaker, J Budagov, HS Budd, K Burkett, G Busetto, KL Byrum, S Cabrera, M Campbell, W Carithers, D Carlsmith, A Castro, D Cauz, A Cerri, L Cerrito, J Chapman, C Chen, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, ML Chu, JY Chung, W-H Chung, YS Chung, CI Ciobanu, AG Clark, M Coca, A Connolly, M Convery, J Conway, M Cordelli, J Cranshaw, R Culbertson, D Dagenhart, S D'Auria, PD Barbaro, SD Cecco, S Dell'Agnello, M Dell'Orso, S Demers, L Demortier, M Deninno, DD Pedis, PF Derwent, C Dionisi, JR Dittmann, A Dominguez, S Donati, M D'Onofrio, T Dorigo, N Eddy, R Erbacher, D Errede, S Errede, R Eusebi, S Farrington, RG Feild, JP Fernandez, C Ferretti, RD Field, I Fiori, B Flaugher, LR Flores-Castillo, GW Foster, M Franklin, J Friedman, I Furic, M Gallinaro, AF Garfinkel, C Gay, DW Gerdes, E Gerstein, S Giagu, P Giannetti, K Giolo, M Giordani, P Giromini, V Glagolev, D Glenzinski, M Gold, N Goldschmidt, J Goldstein, G Gomez, M Goncharov, I Gorelov, AT Goshaw, Y Gotra, K Goulianos, A Gresele, C Grosso-Pilcher, M Guenther, JGD Costa, C Haber, SR Hahn, E Halkiadakis, R Handler, F Happacher, K Hara, RM Harris, F Hartmann, K Hatakeyama, J Hauser, J Heinrich, M Hennecke, M Herndon, C Hill, A Hocker, KD Hoffman, S Hou, BT Huffman, R Hughes, J Huston, C Issever, J Incandela, G Introzzi, M Iori, A Ivanov, Y Iwata, B Iyutin, E James, M Jones, T Kamon, J Kang, MK Unel, S Kartal, H Kasha, Y Kato, RD Kennedy, R Kephart, B Kilminster, DH Kim, HS Kim, MJ Kim, SB Kim, SH Kim, TH Kim, YK Kim, M Kirby, L Kirsch, S Klimenko, P Koehn, K Kondo, J Konigsberg, A Korn, A Korytov, J Kroll, M Kruse, V Krutelyov, SE Kuhlmann, N Kuznetsova, AT Laasanen, S Lami, S Lammel, J Lancaster, K Lannon, M Lancaster, R Lander, A Lath, G Latino, T LeCompte, Y Le, J Lee, SW Lee, N Leonardo, S Leone, JD Lewis, K Li, CS Lin, M Lindgren, TM Liss, T Liu, DO Litvintsev, NS Lockyer, A Loginov, M Loreti, D Lucchesi, P Lukens, L Lyons, J Lys, R Madrak, K Maeshima, P Maksimovic, L Malferrari, M Mangano, G Manca, M Mariotti, M Martin, A Martin, V Martin, M Martinez, P Mazzanti, KS McFarland, P McIntyre, M Menguzzato, A Menzione, P Merkel, C Mesropian, A Meyer, T Miao, R Miller, JS Miller, S Miscetti, G Mitselmakher, N Moggi, R Moore, T Moulik, M Mulhearn, A Mukherjee, T Muller, A Munar, P Murat, J Nachtman, S Nahn, I Nakano, R Napora, F Niell, C Nelson, T Nelson, C Neu, MS Neubauer, C Newman-Holmes, T Nigmanov, L Nodulman, SH Oh, YD Oh, T Ohsugi, T Okusawa, W Orejudos, C Pagliarone, F Palmonari, R Paoletti, V Papadimitriou, J Patrick, G Pauletta, M Paulini, T Pauly, C Paus, D Pellett, A Penzo, TJ Phillips, G Piacentino, J Piedra, KT Pitts, A Pompos, L Pondrom, G Pope, T Pratt, F Prokoshin, J Proudfoot, F Ptohos, O Poukhov, G Punzi, J Rademacker, A Rakitine, F Ratnikov, H Ray, A Reichold, P Renton, M Rescigno, F Rimondi, L Ristori, WJ Robertson, T Rodrigo, S Rolli, L Rosenson, R Roser, R Rossin, C Rott, A Roy, A Ruiz, D Ryan, A Safonov, RS Denis, WK Sakumoto, D Saltzberg, C Sanchez, A Sansoni, L Santi, S Sarkar, P Savard, A Savoy-Navarro, P Schlabach, EE Schmidt, MP Schmidt, M Schmitt, L Scodellaro, A Scribano, A Sedov, S Seidel, Y Seiya, A Semenov, F Semeria, MD Shapiro, PF Shepard, T Shibayama, M Shimojima, M Shochet, A Sidoti, A Sill, P Sinervo, AJ Slaughter, K Sliwa, FD Snider, R Snihur, M Spezziga, F Spinella, M Spiropulu, L Spiegel, A Stefanini, J Strologas, D Stuart, A Sukhanov, K Sumorok, T Suzuki, R Takashima, K Takikawa, M Tanaka, M Tecchio, RJ Tesarek, PK Teng, K Terashi, S Tether, J Thom, TL Thomas, AS Thompson, E Thomson, P Tipton, S Tkaczyk, D Toback, K Tollefson, D Tonelli, M Toennesmann, H Toyoda, W Trischuk, J Tseng, D Tsybychev, N Turini, F Ukegawa, T Unverhau, T Vaiciulis, A Varganov, E Vataga, SV III, G Velev, G Veramendi, R Vidal, I Vila, R Vilar, I Volobouev, MVD Mey, RG Wagner, RL Wagner, W Wagner, Z Wan, C Wang, MJ Wang, SM Wang, B Ward, S Waschke, D Waters, T Watts, M Weber, WCW III, B Whitehouse, AB Wicklund, E Wicklund, HH Williams

The properties of three-jet events with total transverse energy greater than 320 GeV and individual jet energy greater than 20 GeV have been analyzed and compared to absolute predictions from a next-to-leading order (NLO) perturbative QCD calculation. These data, of integrated luminosity 86 pb^-1, were recorded by the CDF Experiment for proton-antiproton collisions at sqrt{s}=1.8 TeV. This study tests a model of higher order QCD processes that result in gluon emission and can be used to estimate the magnitude of the contribution of processes higher than NLO. The total cross section is measured to be 466 +/- 3(stat.)^{+207}_{-70}(syst.) pb. The differential cross section is furthermore measured for all kinematically accessible regions of the Dalitz plane, including those for which the theoretical prediction is unreliable. While the measured cross section is consistent with the theoretical prediction in magnitude, the two differ somewhat in shape in the Dalitz plane.


Comparison of νμ-Ar multiplicity distributions observed by MicroBooNE to GENIE model predictions

ArXiv (0)

C Adams, R An, J Anthony, J Asaadi, M Auger, S Balasubramanian, B Baller, C Barnes, G Barr, M Bass, F Bay, A Bhat, K Bhattacharya, M Bishai, A Blake, T Bolton, L Camilleri, D Caratelli, RC Fernandez, F Cavanna, G Cerati, H Chen, Y Chen, E Church, D Cianci, E Cohen, GH Collin, JM Conrad, M Convery, L Cooper-Troendle, JI Crespo-Anadon, MD Tutto, D Devitt, A Diaz, S Dytman, B Eberly, A Ereditato, LE Sanchez, J Esquivel, JJ Evans, AA Fadeeva, BT Fleming, W Foreman, AP Furmanski, D Garcia-Gamez, GT Garvey, V Genty, D Goeldi, S Gollapinni, E Gramellini, H Greenlee, R Grosso, R Guenette, P Guzowski, A Hackenburg, P Hamilton, O Hen, J Hewes, C Hill, J Ho, GA Horton-Smith, A Hourlier, E-C Huang, C James, JJD Vries, L Jiang, RA Johnson, J Joshi, H Jostlein, Y-J Jwa, D Kaleko, G Karagiorgi, W Ketchum, B Kirby, M Kirby, T Kobilarcik, I Kreslo, Y Li, A Lister, BR Littlejohn, S Lockwitz, D Lorca, WC Louis, M Luethi, B Lundberg, X Luo, A Marchionni, S Marcocci, C Mariani, J Marshall, DAM Caicedo, A Mastbaum, V Meddage, T Mettler, T Miceli, GB Mills, A Mogan, J Moon, M Mooney, CD Moore, J Mousseau, M Murphy, R Murrells, D Naples, P Nienaber, J Nowak, O Palamara, V Pandey, V Paolone, A Papadopoulou, V Papavassiliou, SF Pate, Z Pavlovic, E Piasetzky, D Porzio, G Pulliam, X Qian, JL Raaf, A Rafique, L Rochester, M Ross-Lonergan, CRV Rohr, B Russell, DW Schmitz, A Schukraft, W Seligman, MH Shaevitz, J Sinclair, A Smith, EL Snider, M Soderberg, S Soldner-Rembold, SR Soleti, P Spentzouris, J Spitz, JS John, T Strauss, K Sutton, S Sword-Fehlberg, AM Szelc, N Tagg, W Tang, K Terao, M Thomson, M Toups, Y-T Tsai, S Tufanli, T Usher, WVD Pontseele, RGVD Water, B Viren, M Weber, H Wei, DA Wickremasinghe, K Wierman, Z Williams, S Wolbers, T Wongjirad, K Woodruff, T Yang, G Yarbrough, LE Yates, GP Zeller, J Zennamo, C Zhang

We measure a large set of observables in inclusive charged current muon neutrino scattering on argon with the MicroBooNE liquid argon time projection chamber operating at Fermilab. We evaluate three neutrino interaction models based on the widely used GENIE event generator using these observables. The measurement uses a data set consisting of neutrino interactions with a final state muon candidate fully contained within the MicroBooNE detector. These data were collected in 2016 with the Fermilab Booster Neutrino Beam, which has an average neutrino energy of 800 MeV, using an exposure corresponding to 5e19 protons-on-target. The analysis employs fully automatic event selection and charged particle track reconstruction and uses a data-driven technique to separate neutrino interactions from cosmic ray background events. We find that GENIE models consistently describe the shapes of a large number of kinematic distributions for fixed observed multiplicity, but we show an indication that the observed multiplicity fractions deviate from GENIE expectations.


Design and Construction of the DEAP-3600 Dark Matter Detector

ArXiv (0)

P-A Amaudruz, M Baldwin, M Batygov, B Beltran, CE Bina, D Bishop, J Bonatt, G Boorman, MG Boulay, B Broerman, T Bromwich, JF Bueno, PM Burghardt, A Butcher, B Cai, S Chan, M Chen, R Chouinard, S Churchwell, BT Cleveland, D Cranshaw, K Dering, J DiGioseffo, S Dittmeier, FA Duncan, M Dunford, A Erlandson, N Fatemighomi, S Florian, A Flower, RJ Ford, R Gagnon, P Giampa, VV Golovko, P Gorel, R Gornea, E Grace, K Graham, DR Grant, E Gulyev, A Hall, AL Hallin, M Hamstra, PJ Harvey, C Hearns, CJ Jillings, O Kamaev, A Kemp, M Kuźniak, S Langrock, FL Zia, B Lehnert, O Li, JJ Lidgard, P Liimatainen, C Lim, T Lindner, Y Linn, S Liu, P Majewski, R Mathew, AB McDonald, T McElroy, K McFarlane, T McGinn, JB McLaughlin, S Mead, R Mehdiyev, C Mielnichuk, J Monroe, A Muir, P Nadeau, C Nantais, C Ng, AJ Noble, E O'Dwyer, C Ohlmann, K Olchanski, KS Olsen, C Ouellet, P Pasuthip, SJM Peeters, TR Pollmann, ET Rand, W Rau, C Rethmeier, F Retière, N Seeburn, B Shaw, K Singhrao, P Skensved, B Smith, NJT Smith, T Sonley, J Soukup, R Stainforth, C Stone, V Strickland, B Sur, J Tang, J Taylor, L Veloce, E Vázquez-Jáuregui, J Walding, M Ward, S Westerdale, R White, E Woolsey, J Zielinski

The Dark matter Experiment using Argon Pulse-shape discrimination (DEAP) has been designed for a direct detection search for particle dark matter using a single-phase liquid argon target. The projected cross section sensitivity for DEAP-3600 to the spin-independent scattering of Weakly Interacting Massive Particles (WIMPs) on nucleons is $10^{-46}~\rm{cm}^{2}$ for a 100 GeV/$c^2$ WIMP mass with a fiducial exposure of 3 tonne-years. This paper describes the physical properties and construction of the DEAP-3600 detector.


The Long-Baseline Neutrino Experiment: Exploring Fundamental Symmetries of the Universe

Snowmass 2013 - Intensity Frontier Contributed papers (0)

LBNE Collaboration, C Adams, D Adams, T Akiri, T Alion, K Anderson, C Andreopoulos, M Andrews, I Anghel, JCCD Anjos, M Antonello, E Arrieta-Diaz, M Artuso, J Asaadi, X Bai, B Baibussinov, M Baird, B Balantekin, B Baller, B Baptista, D Barker, G Barker, WA Barletta, G Barr, L Bartoszek, A Bashyal, M Bass, V Bellini, PA Benetti, BE Berger, M Bergevin, E Berman, H-G Berns, A Bernstein, R Bernstein, B Bhandari, V Bhatnagar, B Bhuyan, J Bian, M Bishai, A Blake, F Blaszczyk, E Blaufuss, B Bleakley, E Blucher, S Blusk, V Bocean, F Boffelli, J Boissevain, T Bolton, M Bonesini, S Boyd, A Brandt, R Breedon, C Bromberg, R Brown, G Brunetti, N Buchanan, B Bugg, J Busenitz, E Calligarich, L Camilleri, G Carminati, R Carr, C Castromonte, F Cavanna, S Centro, A Chen, H Chen, K Chen, D Cherdack, C-Y Chi, S Childress, BC Choudhary, G Christodoulou, C-A Christofferson, E Church, D Cline, T Coan, A Cocco, J Coelho, S Coleman, JM Conrad, M Convery, R Corey, L Corwin, J Cranshaw, D Cronin-Hennessy, A Curioni, HD Motta, T Davenne, GS Davies, S Dazeley, K De, AD Gouvea, JKD Jong, D Demuth, C Densham, M Diwan, Z Djurcic, R Dolfini, J Dolph, G Drake, S Dye, H Dyuang, D Edmunds, S Elliott, M Elnimr, S Eno, S Enomoto, CO Escobar, J Evans, A Falcone, L Falk, A Farbin, C Farnese, A Fava, J Felde, S Fernandes, F Ferroni, F Feyzi, L Fields, A Finch, M Fitton, B Fleming, J Fowler, W Fox, A Friedland, S Fuess, B Fujikawa, H Gallagher, R Gandhi, G Garvey, VM Gehman, GD Geronimo, D Gibin, R Gill, RA Gomes, MC Goodman, J Goon, N Graf, M Graham, R Gran, C Grant, N Grant, H Greenlee, L Greenler, S Grullon, E Guardincerri, V Guarino, E Guarnaccia, G Guedes, R Guenette, A Guglielmi, MM Guzzo, AT Habig, RW Hackenburg, H Hadavand, A Hahn, M Haigh, T Haines, T Handler, S Hans, J Hartnell, J Harton, R Hatcher, A Hatzikoutelis, S Hays, E Hazen, M Headley, A Heavey, K Heeger, J Heise, R Hellauer, J Hewes, A Himmel, M Hogan, P Holanda, A Holin, G Horton-Smith, J Howell, P Hurh, J Huston, J Hylen, R Imlay, J Insler, G Introzzi, Z Isvan, C Jackson, J Jacobsen, DE Jaffe, C James, C-M Jen, M Johnson, R Johnson, R Johnson, S Johnson, W Johnston, J Johnstone, BJP Jones, H Jostlein, T Junk, R Kadel, K Kaess, G Karagiorgi, J Kaspar, T Katori, B Kayser, E Kearns, P Keener, E Kemp, SH Kettell, M Kirby, J Klein, G Koizumi, S Kopp, L Kormos, W Kropp, VA Kudryavtsev, A Kumar, J Kumar, T Kutter, FL Zia, K Lande, C Lane, K Lang, F Lanni, R Lanza, T Latorre, J Learned, D Lee, K Lee, Q Li, S Li, Y Li, Z Li, J Libo, S Linden, J Ling, J Link, L Littenberg, H Liu, Q Liu, T Liu, J Losecco, W Louis, B Lundberg, T Lundin, J Lundy, AA Machado, C Maesano, S Magill, G Mahler, D Malon, S Malys, F Mammoliti, SK Mandal, A Mann, P Mantsch, A Marchionni, W Marciano, C Mariani, J Maricic, A Marino, M Marshak, J Marshall, S Matsuno, C Mauger, K Mavrokoridis, N Mayer, N McCauley, E McCluskey, K McDonald, K McFarland, D McKee, R McKeown, R McTaggart, R Mehdiyev, D Mei, A Menegolli, G Meng, Y Meng, D Mertins, M Messier, W Metcalf, R Milincic, W Miller, G Mills, SR Mishra, N Mokhov, C Montanari, D Montanari, C Moore, J Morfin, B Morgan, W Morse, Z Moss, CA Moura, S Mufson, D Muller, J Musser, D Naples, J Napolitano, M Newcomer, R Nichol, T Nicholls, E Niner, B Norris, J Nowak, H O'Keeffe, R Oliveira, T Olson, B Page, S Pakvasa, O Palamara, J Paley, V Paolone, V Papadimitriou, S Park, Z Parsa, K Partyka, B Paulos, Z Pavlovic, S Peeters, A Perch, JD Perkin, R Petti, A Petukhov, F Pietropaolo, R Plunkett, C Polly, S Pordes, M Potekhin, R Potenza, A Prakash, O Prokofiev, X Qian, JL Raaf, V Radeka, I Rakhno, Y Ramachers, R Rameika, J Ramsey, A Rappoldi, GL Raselli, P Ratoff, S Ravindra, B Rebel, J Reichenbacher, D Reitzner, S Rescia, M Richardson, K Rielage, K Riesselmann, M Robinson, L Rochester, M Ronquest, M Rosen, M Rossella, C Rubbia, R Rucinski, S Sahijpal, H Sahoo, P Sala, D Salmiera, N Samios, M Sanchez, A Scaramelli, H Schellman, R Schmitt, D Schmitz, J Schneps, K Scholberg, E Segreto, S Seibert, L Sexton-Kennedy, M Shaevitz, P Shanahan, R Sharma, T Shaw, N Simos, V Singh, G Sinnis, W Sippach, T Skwarnicki, M Smy, H Sobel, M Soderberg, J Sondericker, W Sondheim, A Sousa, NJC Spooner, M Stancari, I Stancu, D Stefan, A Stefanik, J Stewart, S Stone, J Strait, M Strait, S Striganov, G Sullivan, Y Sun, L Suter, A Svenson, R Svoboda, B Szczerbinska, A Szelc, M Szydagis, S Söldner-Rembold, R Talaga, M Tamsett, S Tariq, R Tayloe, C Taylor, D Taylor, A Teymourian, H Themann, M Thiesse, J Thomas, LF Thompson, M Thomson, C Thorn, M Thorpe, X Tian, D Tiedt, W Toki, N Tolich, M Torti, M Toups, C Touramanis, M Tripathi, I Tropin, Y-T Tsai, C Tull, M Tzanov, J Urheim, S Usman, M Vagins, G Valdiviesso, RV Berg, RVD Water, PV Gemmeren, F Varanini, G Varner, K Vaziri, G Velev, S Ventura, C Vignoli, B Viren, D Wahl, A Waldron, CW Walter, H Wang, W Wang, K Warburton, D Warner, R Wasserman, B Watson, A Weber, W Wei, D Wells, M Wetstein, A White, H White, L Whitehead, D Whittington, J Willhite, RJ Wilson, L Winslow, K Wood, E Worcester, M Worcester, T Xin, K Yarritu, J Ye, M Yeh, B Yu, J Yu, T Yuan, A Zani, GP Zeller, C Zhang, C Zhang, ED Zimmerman, R Zwaska

The preponderance of matter over antimatter in the early Universe, the dynamics of the supernova bursts that produced the heavy elements necessary for life and whether protons eventually decay --- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our Universe, its current state and its eventual fate. The Long-Baseline Neutrino Experiment (LBNE) represents an extensively developed plan for a world-class experiment dedicated to addressing these questions. LBNE is conceived around three central components: (1) a new, high-intensity neutrino source generated from a megawatt-class proton accelerator at Fermi National Accelerator Laboratory, (2) a near neutrino detector just downstream of the source, and (3) a massive liquid argon time-projection chamber deployed as a far detector deep underground at the Sanford Underground Research Facility. This facility, located at the site of the former Homestake Mine in Lead, South Dakota, is approximately 1,300 km from the neutrino source at Fermilab -- a distance (baseline) that delivers optimal sensitivity to neutrino charge-parity symmetry violation and mass ordering effects. This ambitious yet cost-effective design incorporates scalability and flexibility and can accommodate a variety of upgrades and contributions. With its exceptional combination of experimental configuration, technical capabilities, and potential for transformative discoveries, LBNE promises to be a vital facility for the field of particle physics worldwide, providing physicists from around the globe with opportunities to collaborate in a twenty to thirty year program of exciting science. In this document we provide a comprehensive overview of LBNE's scientific objectives, its place in the landscape of neutrino physics worldwide, the technologies it will incorporate and the capabilities it will possess.


Commissioning of ELLIE for SNO+

ArXiv (0)

E Falk, J Lidgard, MI Stringer, E Turner

SNO+ is a neutrinoless double beta decay and low energy neutrino experiment located in Sudbury, Canada. To improve our understanding of the detector energy resolution and systematics, calibration systems have been developed to continuously monitor the optical properties of the detector, such as: absorption, re-emission, scattering and timing. A part of this in-situ optical calibration system is the Embedded LED/Laser Light Injection Entity (ELLIE). It consists of three subsystems: AMELLIE, SMELLIE, TELLIE. The attenuation module (AMELLIE) is designed to monitor the total optical attenuation, whereas the optical scattering over a wavelength range of 375nm -- 700nm will be characterized by the scattering module (SMELLIE). The timing module (TELLIE) aims to measure the timing characteristics of the photomultiplier tubes. We present the planned commissioning of these three systems, the running of which began early 2017.


First results from the DEAP-3600 dark matter search with argon at SNOLAB

ArXiv (0)

D Collaboration, P-A Amaudruz, M Baldwin, M Batygov, B Beltran, CE Bina, D Bishop, J Bonatt, G Boorman, MG Boulay, B Broerman, T Bromwich, JF Bueno, A Butcher, B Cai, S Chan, M Chen, R Chouinard, BT Cleveland, D Cranshaw, K Dering, J DiGioseffo, S Dittmeier, FA Duncan, M Dunford, A Erlandson, N Fatemighomi, S Florian, A Flower, RJ Ford, R Gagnon, P Giampa, VV Golovko, P Gorel, R Gornea, E Grace, K Graham, DR Grant, E Gulyev, R Hakobyan, A Hall, AL Hallin, M Hamstra, PJ Harvey, C Hearns, CJ Jillings, O Kamaev, A Kemp, M Kuźniak, S Langrock, FL Zia, B Lehnert, JJ Lidgard, C Lim, T Lindner, Y Linn, S Liu, P Majewski, R Mathew, AB McDonald, T McElroy, T McGinn, JB McLaughlin, S Mead, R Mehdiyev, C Mielnichuk, J Monroe, A Muir, P Nadeau, C Nantais, C Ng, AJ Noble, E O'Dwyer, C Ohlmann, K Olchanski, KS Olsen, C Ouellet, P Pasuthip, SJM Peeters, TR Pollmann, ET Rand, W Rau, C Rethmeier, F Retière, N Seeburn, B Shaw, K Singhrao, P Skensved, B Smith, NJT Smith, T Sonley, J Soukup, R Stainforth, C Stone, V Strickland, B Sur, J Tang, J Taylor, L Veloce, E Vázquez-Jáuregui, J Walding, M Ward, S Westerdale, E Woolsey, J Zielinski

This paper reports the first results of a direct dark matter search with the DEAP-3600 single-phase liquid argon (LAr) detector. The experiment was performed 2 km underground at SNOLAB (Sudbury, Canada) utilizing a large target mass, with the LAr target contained in a spherical acrylic vessel of 3600 kg capacity. The LAr is viewed by an array of PMTs, which would register scintillation light produced by rare nuclear recoil signals induced by dark matter particle scattering. An analysis of 4.44 live days (fiducial exposure of 9.87 tonne-days) of data taken with the nearly full detector during the initial filling phase demonstrates the detector performance and the best electronic recoil rejection using pulse-shape discrimination in argon, with leakage $<1.2\times 10^{-7}$ (90% C.L.) between 16 and 33 keV$_{ee}$. No candidate signal events are observed, which results in the leading limit on WIMP-nucleon spin-independent cross section on argon, $<1.2\times 10^{-44}$ cm$^2$ for a 100 GeV/c$^2$ WIMP mass (90% C.L.).


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T2K Collaboration


Optimised sensitivity to leptonic CP violation from spectral information: the LBNO case at 2300 km baseline

arXiv (0)

LAGUNA-LBNO Collaboration, SK Agarwalla, L Agostino, M Aittola, A Alekou, B Andrieu, F Antoniou, R Asfandiyarov, D Autiero, O Bésida, A Balik, P Ballett, I Bandac, D Banerjee, W Bartmann, F Bay, B Biskup, AM Blebea-Apostu, A Blondel, M Bogomilov, S Bolognesi, E Borriello, I Brancus, A Bravar, M Buizza-Avanzini, D Caiulo, M Calin, M Calviani, M Campanelli, C Cantini, G Cata-Danil, S Chakraborty, N Charitonidis, L Chaussard, D Chesneanu, F Chipesiu, P Crivelli, J Dawson, ID Bonis, Y Declais, PDA Sanchez, A Delbart, SD Luise, D Duchesneau, J Dumarchez, I Efthymiopoulos, A Eliseev, S Emery, T Enqvist, K Enqvist, L Epprecht, AN Erykalov, T Esanu, D Franco, M Friend, V Galymov, G Gavrilov, A Gendotti, C Giganti, S Gilardoni, B Goddard, CM Gomoiu, YA Gornushkin, P Gorodetzky, A Haesler, T Hasegawa, S Horikawa, K Huitu, A Izmaylov, A Jipa, K Kainulainen, Y Karadzhov, M Khabibullin, A Khotjantsev, AN Kopylov, A Korzenev, S Kosyanenko, D Kryn, Y Kudenko, P Kuusiniemi, I Lazanu, C Lazaridis, J-M Levy, K Loo, J Maalampi, RM Margineanu, J Marteau, C Martin-Mari, V Matveev, E Mazzucato, A Mefodiev, O Mineev, A Mirizzi, B Mitrica, S Murphy, T Nakadaira, S Narita, DA Nesterenko, K Nguyen, K Nikolics, E Noah, Y Novikov, A Oprima, J Osborne, T Ovsyannikova, Y Papaphilippou, S Pascoli, T Patzak, M Pectu, E Pennacchio, L Periale, H Pessard, B Popov, M Ravonel, M Rayner, F Resnati, O Ristea, A Robert, A Rubbia, K Rummukainen, A Saftoiu, K Sakashita, F Sanchez-Galan, J Sarkamo, N Saviano, E Scantamburlo, F Sergiampietri, D Sgalaberna, E Shaposhnikova, M Slupecki, D Smargianaki, D Stanca, R Steerenberg, AR Sterian, P Sterian, S Stoica, C Strabel, J Suhonen, V Suvorov, G Toma, A Tonazzo, WH Trzaska, R Tsenov, K Tuominen, M Valram, G Vankova-Kirilova, F Vannucci, G Vasseur, F Velotti, P Velten, V Venturi, T Viant, S Vihonen, H Vincke, A Vorobyev, A Weber, S Wu, N Yershov, L Zambelli, M Zito

One of the main goals of the Long Baseline Neutrino Observatory (LBNO) is to study the $L/E$ behaviour (spectral information) of the electron neutrino and antineutrino appearance probabilities, in order to determine the unknown CP-violation phase $\delta_{CP}$ and discover CP-violation in the leptonic sector. The result is based on the measurement of the appearance probabilities in a broad range of energies, covering t he 1st and 2nd oscillation maxima, at a very long baseline of 2300 km. The sensitivity of the experiment can be maximised by optimising the energy spectra of the neutrino and anti-neutrino fluxes. Such an optimisation requires exploring an extended range of parameters describing in details the geometries and properties of the primary protons, hadron target and focusing elements in the neutrino beam line. In this paper we present a numerical solution that leads to an optimised energy spectra and study its impact on the sensitivity of LBNO to discover leptonic CP violation. In the optimised flux both 1st and 2nd oscillation maxima play an important role in the CP sensitivity. The studies also show that this configuration is less sensitive to systematic errors (e.g. on the total event rates) than an experiment which mainly relies on the neutrino-antineutrino asymmetry at the 1st maximum to determine the existence of CP-violation.


The LBNO long-baseline oscillation sensitivities with two conventional neutrino beams at different baselines

arXiv (0)

LAGUNA-LBNO Collaboration, SK Agarwalla, L Agostino, M Aittola, A Alekou, B Andrieu, F Antoniou, R Asfandiyarov, D Autiero, O Bésida, A Balik, P Ballett, I Bandac, D Banerjee, W Bartmann, F Bay, B Biskup, AM Blebea-Apostu, A Blondel, M Bogomilov, S Bolognesi, E Borriello, I Brancus, A Bravar, M Buizza-Avanzini, D Caiulo, M Calin, M Calviani, M Campanelli, C Cantini, G Cata-Danil, S Chakraborty, N Charitonidis, L Chaussard, D Chesneanu, F Chipesiu, P Crivelli, J Dawson, ID Bonis, Y Declais, PDA Sanchez, A Delbart, SD Luise, D Duchesneau, J Dumarchez, I Efthymiopoulos, A Eliseev, S Emery, T Enqvist, K Enqvist, L Epprecht, AN Erykalov, T Esanu, D Franco, M Friend, V Galymov, G Gavrilov, A Gendotti, C Giganti, S Gilardoni, B Goddard, CM Gomoiu, YA Gornushkin, P Gorodetzky, A Haesler, T Hasegawa, S Horikawa, K Huitu, A Izmaylov, A Jipa, K Kainulainen, Y Karadzhov, M Khabibullin, A Khotjantsev, AN Kopylov, A Korzenev, S Kosyanenko, D Kryn, Y Kudenko, P Kuusiniemi, I Lazanu, C Lazaridis, J-M Levy, K Loo, J Maalampi, RM Margineanu, J Marteau, C Martin-Mari, V Matveev, E Mazzucato, A Mefodiev, O Mineev, A Mirizzi, B Mitrica, S Murphy, T Nakadaira, S Narita, DA Nesterenko, K Nguyen, K Nikolics, E Noah, Y Novikov, A Oprima, J Osborne, T Ovsyannikova, Y Papaphilippou, S Pascoli, T Patzak, M Pectu, E Pennacchio, L Periale, H Pessard, B Popov, M Ravonel, M Rayner, F Resnati, O Ristea, A Robert, A Rubbia, K Rummukainen, A Saftoiu, K Sakashita, F Sanchez-Galan, J Sarkamo, N Saviano, E Scantamburlo, F Sergiampietri, D Sgalaberna, E Shaposhnikova, M Slupecki, D Smargianaki, D Stanca, R Steerenberg, AR Sterian, P Sterian, S Stoica, C Strabel, J Suhonen, V Suvorov, G Toma, A Tonazzo, WH Trzaska, R Tsenov, K Tuominen, M Valram, G Vankova-Kirilova, F Vannucci, G Vasseur, F Velotti, P Velten, V Venturi, T Viant, S Vihonen, H Vincke, A Vorobyev, A Weber, S Wu, N Yershov, L Zambelli, M Zito

The proposed Long Baseline Neutrino Observatory (LBNO) initially consists of $\sim 20$ kton liquid double phase TPC complemented by a magnetised iron calorimeter, to be installed at the Pyh\"asalmi mine, at a distance of 2300 km from CERN. The conventional neutrino beam is produced by 400 GeV protons accelerated at the SPS accelerator delivering 700 kW of power. The long baseline provides a unique opportunity to study neutrino flavour oscillations over their 1st and 2nd oscillation maxima exploring the $L/E$ behaviour, and distinguishing effects arising from $\delta_{CP}$ and matter. In this paper we show how this comprehensive physics case can be further enhanced and complemented if a neutrino beam produced at the Protvino IHEP accelerator complex, at a distance of 1160 km, and with modest power of 450 kW is aimed towards the same far detectors. We show that the coupling of two independent sub-MW conventional neutrino and antineutrino beams at different baselines from CERN and Protvino will allow to measure CP violation in the leptonic sector at a confidence level of at least $3\sigma$ for 50\% of the true values of $\delta_{CP}$ with a 20 kton detector. With a far detector of 70 kton, the combination allows a $3\sigma$ sensitivity for 75\% of the true values of $\delta_{CP}$ after 10 years of running. Running two independent neutrino beams, each at a power below 1 MW, is more within today's state of the art than the long-term operation of a new single high-energy multi-MW facility, which has several technical challenges and will likely require a learning curve.


VENu: The Virtual Environment for Neutrinos

ArXiv (0)

MD Tutto

The Virtual Environment for Neutrinos (VENu) is a virtual reality-based visualisation of the MicroBooNE detector. MicroBooNE is a liquid-argon-based neutrino experiment, which is currently operating in Fermilab's Booster neutrino beam. The new VENu smartphone app provides informative explanations about neutrinos and uses real MicroBooNE neutrino data that can be visualised inside a virtual representation of the MicroBooNE detector. Available for both iOS and Android, the VENu app can be downloaded for free from the Apple and Google marketplaces. The app enables users to immerse themselves inside the MicroBooNE particle detector and to see particle tracks inside. This can be done in Virtual Reality mode, where the users can pair their smartphone with any consumer virtual reality headset and see the detector in 3D. To encourage learning in a fun environment, a game is also available, guiding users to learn about neutrinos and how to detect them. They can also try to "catch"' neutrinos themselves in 3D mode. The app is currently being pursued for a QuarkNet neutrino master class and outreach events at several universities and labs worldwide.


Neutrino Interactions in MicroBooNE

ArXiv (0)

MD Tutto

MicroBooNE is a liquid-argon-based neutrino experiment, which began collecting data in Fermilab's Booster neutrino beam in October 2015. Physics goals of the experiment include probing the source of the anomalous excess of electron-like events in MiniBooNE. In addition to this, MicroBooNE is carrying out an extensive cross section physics program that will help to probe current theories on neutrino-nucleon interactions and nuclear effects. These proceedings summarise the status of MicroBooNE's neutrino cross section analyses.


Measurement of the $\nu_e$ and Total $^{8}$B Solar Neutrino Fluxes with the Sudbury Neutrino Observatory Phase-III Data Set

ArXiv (0)

SD Biller


Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics

ArXiv (0)

TATLAS Collaboration, G Aad, E Abat, B Abbott, J Abdallah, AA Abdelalim, A Abdesselam, O Abdinov, B Abi, M Abolins, H Abramowicz, BS Acharya, DL Adams, TN Addy, C Adorisio, P Adragna, T Adye, JA Aguilar-Saavedra, M Aharrouche, SP Ahlen, F Ahles, A Ahmad, H Ahmed, G Aielli, T Akdogan, TPA Akesson, G Akimoto, MS Alam, MA Alam, J Albert, S Albrand, M Aleksa, IN Aleksandrov, F Alessandria, C Alexa, G Alexander, G Alexandre, T Alexopoulos, M Alhroob, G Alimonti, J Alison, M Aliyev, PP Allport, SE Allwood-Spiers, A Aloisio, R Alon, A Alonso, J Alonso, MG Alviggi, K Amako, P Amaral, C Amelung, VV Ammosov, A Amorim, G Amoros, N Amram, C Anastopoulos, CF Anders, KJ Anderson, A Andreazza, V Andrei, M-L Andrieux, XS Anduaga, F Anghinolfi, A Antonaki, M Antonelli, S Antonelli, B Antunovic, FA Anulli, G Arabidze, I Aracena, Y Arai, ATH Arce, JP Archambault, S Arfaoui, J-F Arguin, T Argyropoulos, E Arik, M Arik, AJ Armbruster, O Arnaez, C Arnault, A Artamonov, D Arutinov, M Asai, S Asai, S Ask, B Asman, D Asner, L Asquith, K Assamagan, A Astbury, A Astvatsatourov, T Atkinson, G Atoian, B Auerbach, E Auge, K Augsten, MA Aurousseau, N Austin, G Avolio, R Avramidou, A Axen, C Ay, G Azuelos, Y Azuma, MA Baak, G Baccaglioni, C Bacci, H Bachacou, K Bachas, M Backes, E Badescu, P Bagnaia, Y Bai, DC Bailey, JT Baines, OK Baker, FBDS Pedrosa, E Banas, S Banerjee, D Banfi, A Bangert, V Bansal, SP Baranov, S Baranov, A Barashkou, TB Barber, EL Barberio, D Barberis, MB Barbero, DY Bardin, T Barillari, M Barisonzi, T Barklow, NB Barlow, BM Barnett, RM Barnett, S Baron, A Baroncelli, AJ Barr, F Barreiro, JBGD Costa, P Barrillon, R Bartoldus, D Bartsch, J Bastos, RL Bates, JR Batley, A Battaglia, M Battistin, F Bauer, M Bazalova, B Beare, PH Beauchemin, RB Beccherle, N Becerici, P Bechtle, GA Beck, HP Beck, M Beckingham, KH Becks, I Bedajanek, AJ Beddall, A Beddall, P Bednar, VA Bednyakov, C Bee, SB Harpaz, PK Behera, M Beimforde, C Belanger-Champagne, PJ Bell, WH Bell, G Bella, L Bellagamba, F Bellina, M Bellomo, A Belloni, K Belotskiy, O Beltramello, SB Ami, O Benary, D Benchekroun, M Bendel, BH Benedict, N Benekos, Y Benhammou, GP Benincasa, DP Benjamin, M Benoit, JR Bensinger, K Benslama, S Bentvelsen, M Beretta, D Berge, EB Kuutmann, N Berger, F Berghaus, E Berglund, J Beringer, K Bernardet, P Bernat, R Bernhard, C Bernius, T Berry, A Bertin, N Besson, S Bethke, RM Bianchi, M Bianco, O Biebel, J Biesiada, M Biglietti, H Bilokon, S Binet, A Bingul, C Bini, C Biscarat, M Bischofberger, U Bitenc, KM Black, RE Blair, G Blanchot, C Blocker, J Blocki, A Blondel, W Blum, U Blumenschein, C Boaretto, GJ Bobbink, A Bocci, B Bodine, J Boek, N Boelaert, S Boeser, JA Bogaerts, A Bogouch, C Bohm, J Bohm, V Boisvert, T Bold, V Boldea, VG Bondarenko, M Bondioli, M Boonekamp, CN Booth, PSL Booth, JRA Booth, A Borisov, G Borissov, I Borjanovic, S Borroni, K Bos, D Boscherini, M Bosman, M Bosteels, H Boterenbrood, J Bouchami, J Boudreau, EV Bouhova-Thacker, C Boulahouache, C Bourdarios, J Boyd, IR Boyko, A Braem, P Branchini, GW Brandenburg, A Brandt, O Brandt, U Bratzler, JE Brau, HM Braun, B Brelier, J Bremer, R Brenner, S Bressler, D Breton, ND Brett, D Britton, FM Brochu, I Brock, R Brock, E Brodet, F Broggi, G Brooijmans, WK Brooks, E Brubaker, PABD Renstrom, D Bruncko, R Bruneliere, S Brunet, A Bruni, G Bruni, M Bruschi, T Buanes, FB Bucci, P Buchholz, AG Buckley, IA Budagov, V Buescher, L Bugge, F Bujor, O Bulekov, M Bunse, T Buran, H Burckhart, S Burdin, S Burke, E Busato, CP Buszello, F Butin, B Butler, JM Butler, CM Buttar, JM Butterworth, T Byatt, SC Urban, D Caforio, O Cakir, P Calafiura, G Calderini, R Calkins, LP Caloba, R Caloi, D Calvet, P Camarri, M Cambiaghi, D Cameron, FC Segura, S Campana, M Campanelli, V Canale, J Cantero, MDMC Garrido, I Caprini, M Caprini, M Capua, R Caputo, C Caramarcu, R Cardarelli, T Carli, G Carlino, L Carminati, B Caron, S Caron, SC Montero, AA Carter, JR Carter, J Carvalho, D Casadei, MP Casado, M Cascella, C Caso, AMC Hernadez, EC Miranda, VC Gimenez, NF Castro, G Cataldi, A Catinaccio, JR Catmore, A Cattai, G Cattani, S Caughron, D Cauz, P Cavalleri, D Cavalli, M Cavalli-Sforza, V Cavasinni, A Cazzato, F Ceradini, AS Cerqueira, A Cerri, L Cerrito, F Cerutti, SA Cetin, F Cevenini, AC Chafaq, D Chakraborty, JD Chapman, JW Chapman, EC Chareyre, DG Charlton, SC Chatterjii, S Cheatham, S Chekanov, SV Chekulaev, GA Chelkov, H Chen, T Chen, X Chen, S Cheng, TL Cheng, A Cheplakov, VF Chepurnov, RCE Moursli, V Tcherniatine, D Chesneanu, E Cheu, SL Cheung, L Chevalier, F Chevallier, V Chiarella, G Chiefari, L Chikovani, JT Childers, A Chilingarov, G Chiodini, S Chouridou, D Chren, IA Christidi, A Christov, D Chromek-Burckhart, ML Chu, J Chudoba, G Ciapetti, AK Ciftci, R Ciftci, V Cindro, MD Ciobotaru, C Ciocca, A Ciocio, M Cirilli, M Citterio, A Clark, W Cleland, JC Clemens, B Clement, C Clement, D Clements, Y Coadou, M Cobal, A Coccaro, J Cochran, S Coelli, J Coggeshall, E Cogneras, CD Cojocaru, J Colas, B Cole, AP Colijn, C Collard, NJ Collins, C Collins-Tooth, J Collot, G Colon, R Coluccia, PC Muino, E Coniavitis, M Consonni, S Constantinescu, C Conta, F Conventi, J Cook, M Cooke, BD Cooper, NJ Cooper-Smith, K Copic, T Cornelissen, M Corradi, FC Corriveau, A Corso-Radu, A Cortes-Gonzalez, G Costa, MJ Costa, D Costanzo, T Costin, D Cote, RC Torres, L Courneyea, G Cowan, CC Cowden, BE Cox, K Cranmer, J Cranshaw, M Cristinziani, G Crosetti, RC Crupi, S Crepe-Renaudin, C-M Cuciuc, CC Almenar, M Curatolo, CJ Curtis, P Cwetanski, Z Czyczula, S D'Auria, M D'Onofrio, A D'Orazio, ADRG Mello, PVMD Silva, CVD Via, W Dabrowski, T Dai, C Dallapiccola, SJ Dallison, CH Daly, M Dam, HO Danielsson, D Dannheim, V Dao, G Darbo, WD Davey, T Davidek, N Davidson, R Davidson, AR Davison, I Dawson, JW Dawson, RK Daya, K De, RD Asmundis, SD Castro, PEDCF Salgado, SD Cecco, ND Groot, PD Jong, EDL Cruz-Burelo, CDL Taille, LD Mora, MDO Branco, DD Pedis, AD Salvo, UD Sanctis, AD Santo, JBDVD Regie, GD Zorzi, S Dean, G Dedes, DV Dedovich, PO Defay, J Degenhardt, M Dehchar, CD Papa, JD Peso, TD Prete, A Dell'Acqua, L Dell'Asta, MD Pietra, DD Volpe, M Delmastro, N Delruelle, PA Delsart, S Demers, M Demichev, B Demirkoz, W Deng, SP Denisov, C Dennis, F Derue, P Dervan, KK Desch, PO Deviveiros, A Dewhurst, R Dhullipudi, AD Ciaccio, LD Ciaccio, AD Domenico, AD Girolamo, BD Girolamo, SD Luise, AD Mattia, RD Nardo, AD Simone, RD Sipio, MA Diaz, EB Diehl, J Dietrich, S Diglio, KD Yagci, DJ Dingfelder, C Dionisi, P Dita, S Dita, F Dittus, F Djama, R Djilkibaev, T Djobava, MABD Vale, M Dobbs, R Dobinson, D Dobos, E Dobson, M Dobson, OB Dogan, T Doherty, Y Doi, J Dolejsi, I Dolenc, Z Dolezal, BA Dolgoshein, M Donega, J Donini, T Donszelmann, J Dopke, DE Dorfan, A Doria, AD Anjos, M Dosil, A Dotti, MT Dova, A Doxiadis, AT Doyle, JD Dragic, Z Drasal, N Dressnandt, C Driouichi, M Dris, J Dubbert, E Duchovni, G Duckeck, A Dudarev, M Duehrssen, IP Duerdoth, L Duflot, M-A Dufour, M Dunford, A Duperrin, HD Yildiz, A Dushkin, R Duxfield, M Dwuznik, M Dueren, WL Ebenstein, S Eckert, S Eckweiler, K Edmonds, P Eerola, K Egorov, W Ehrenfeld, T Ehrich, T Eifert, G Eigen, K Einsweiler, E Eisenhandler, T Ekelof, ME Kacimi, M Ellert, S Elles, K Ellis, N Ellis, J Elmsheuser, M Elsing, R Ely, D Emeliyanov, R Engelmann, A Engl, B Epp, A Eppig, VS Epshteyn, J Erdmann, A Ereditato, D Eriksson, I Ermoline, J Ernst, E Ernst, J Ernwein, D Errede, S Errede, M Escalier, C Escobar, XE Curull, B Esposito, F Etienne, AI Etienvre, E Etzion, H Evans, L Fabbri, C Fabre, P Faccioli, K Facius, RM Fakhrutdinov, S Falciano, AC Falou, Y Fang, M Fanti, A Farbin, A Farilla, J Farley, T Farooque, SM Farrington, P Farthouat, F Fassi, P Fassnacht, D Fassouliotis, B Fatholahzadeh, L Fayard, F Fayette, R Febbraro, P Federic, OL Fedin, I Fedorko, L Feligioni, C Feng, EJ Feng, AB Fenyuk, J Ferencei, J Ferland, W Fernando, S Ferrag, A Ferrari, P Ferrari, R Ferrari, A Ferrer, ML Ferrer, D Ferrere, C Ferretti, M Fiascaris, F Fiedler, A Filipcic, A Filippas, F Filthaut, M Fincke-Keeler, L Fiorini, A Firan, G Fischer, MJ Fisher, HF Flacher, M Flechl, I Fleck, J Fleckner, P Fleischmann, S Fleischmann, CMF Corral, T Flick, LRF Castillo, MJ Flowerdew, F Foehlisch, M Fokitis, TF Martin, DA Forbush, A Formica, A Forti, JM Foster, D Fournier, A Foussat, AJ Fowler, KF Fowler, H Fox, P Francavilla, S Franchino, D Francis, S Franz, M Fraternali, S Fratina, J Freestone, R Froeschl, D Froidevaux, JA Frost, C Fukunaga, EF Torregrosa, J Fuster, C Gabaldon, OG Gabizon, T Gadfort, S Gadomski, G Gagliardi, P Gagnon, EJ Gallas, MV Gallas, BJ Gallop, E Galyaev, KK Gan, YS Gao, A Gaponenko, M Garcia-Sciveres, C Garcia, JEG Navarro, RW Gardner, N Garelli, H Garitaonandia, VG Garonne, C Gatti, G Gaudio, O Gaumer, P Gauzzi, IL Gavrilenko, C Gay, GG Gaycken, J-C Gayde, EN Gazis, CNP Gee, C Geich-Gimbel, K Gellerstedt, C Gemme, MH Genest, S Gentile, F Georgatos, S George, P Gerlach, C Geweniger, H Ghazlane, P Ghez, N Ghodbane, B Giacobbe, S Giagu, V Giangiobbe, F Gianotti, B Gibbard, A Gibson, SM Gibson, LM Gilbert, M Gilchriese, V Gilewsky, AR Gillman, DM Gingrich, J Ginzburg, N Giokaris, MP Giordani, P Giovannini, PF Giraud, P Girtler, D Giugni, P Giusti, BK Gjelsten, LK Gladilin, C Glasman, A Glazov, KW Glitza, GL Glonti, KG Gnanvo, JG Godfrey, J Godlewski, T Goepfert, C Goessling, T Goettfert, VG Goggi, S Goldfarb, D Goldin, T Golling, NP Gollub, A Gomes, R Goncalo, C Gong, SGDL Hoz, MLG Silva, S Gonzalez-Sevilla, JJ Goodson, L Goossens, PA Gorbounov, H Gordon, I Gorelov, G Gorfine, B Gorini, E Gorini, A Gorisek, E Gornicki, SA Gorokhov, SV Goryachev, VN Goryachev, B Gosdzik, M Gosselink, MI Gostkin, IG Eschrich, M Gouighri, D Goujdami, M Goulette, AG Goussiou, S Gowdy, C Goy, I Grabowska-Bold, P Grafstroem, K-J Grahn, LG Cardoso, F Grancagnolo, S Grancagnolo, V Gratchev, HM Gray, JA Gray, E Graziani, B Green, ZD Greenwood, IM Gregor, E Griesmayer, N Grigalashvili, AA Grillo, K Grimm, YV Grishkevich, LS 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Strong, R Stroynowski, B Stugu, I Stumer, D Su, S Subramania, SI Suchkov, Y Sugaya, T Sugimoto, C Suhr, M Suk, VV Sulin, S Sultansoy, JE Sundermann, K Suruliz, S Sushkov, G Susinno, MR Sutton, T Suzuki, YM Sviridov, I Sykora, T Sykora, RR Szczygiel, T Szymocha, J Sanchez, D Ta, AT Taffard, R Tafirout, A Taga, Y Takahashi, H Takai, R Takashima, H Takeda, T Takeshita, M Talby, B Tali, A Talyshev, MC Tamsett, J Tanaka, R Tanaka, S Tanaka, S Tanaka, GP Tappern, S Tapprogge, S Tarem, F Tarrade, GF Tartarelli, P Tas, M Tasevsky, ET Tassi, C Taylor, FE Taylor, GN Taylor, RP Taylor, W Taylor, F Tegenfeldt, P Teixeira-Dias, HT Kate, PK Teng, S Terada, K Terashi, J Terron, M Terwort, RJ Teuscher, CM Tevlin, J Thadome, R Thananuwong, M Thioye, JP Thomas, TL Thomas, EN Thompson, PD Thompson, RJ Thompson, AS Thompson, E Thomson, RP Thun, T Tic, VO Tikhomirov, YA Tikhonov, CJWP Timmermans, P Tipton, FJTA Viegas, S Tisserant, J Tobias, B Toczek, TT Todorov, S Todorova-Nova, J Tojo, S Tokar, K Tokushuku, L Tomasek, M Tomasek, F Tomasz, M Tomoto, D Tompkins, L Tompkins, K Toms, A Tonazzo, G Tong, A Tonoyan, C Topfel, ND Topilin, E Torrence, ET Pastor, J Toth, F Touchard, DR Tovey, SN Tovey, T Trefzger, L Tremblet, A Tricoli, IM Trigger, S Trincaz-Duvoid, MF Tripiana, N Triplett, W Trischuk, A Trivedi, B Trocme, C Troncon, C Tsarouchas, JC-L Tseng, I Tsiafis, M Tsiakiris, PV Tsiareshka, G Tsipolitis, EG Tskhadadze, II Tsukerman, V Tsulaia, S Tsuno, M Turala, D Turecek, IT Cakir, E Turlay, PM Tuts, MS Twomey, M Tyndel, D Typaldos, G Tzanakos, I Ueda, M Uhrmacher, F Ukegawa, G Unal, DG Underwood, A Undrus, G Unel, Y Unno, E Urkovsky, P Urquijo, P Urrejola, G Usai, L Vacavant, V Vacek, B Vachon, S Vahsen, C Valderanis, J Valenta, P Valente, S Valkar, JAV Ferrer, HVD Bij, HVD Graaf, EVD Kraaij, EVD Poel, NV Eldik, PV Gemmeren, ZV Kesteren, IV Vulpen, R VanBerg, W Vandelli, G Vandoni, A Vaniachine, P Vankov, F Vannucci, FV Rodriguez, R Vari, EW Varnes, D Varouchas, A Vartapetian, KE Varvell, VI Vassilakopoulos, L Vassilieva, E Vataga, F Vazeille, G Vegni, JJ Veillet, C Vellidis, F Veloso, R Veness, S Veneziano, A Ventura, D Ventura, S Ventura, N Venturi, V Vercesi, M Verducci, W Verkerke, JC Vermeulen, MC Vetterli, I Vichou, T Vickey, GHA Viehhauser, M Villa, EG Villani, MV Perez, E Vilucchi, MG Vincter, VB Vinogradov, M Virchaux, S Viret, J Virzi, A Vitale, OV Vitells, I Vivarelli, R Vives, FV Vaques, S Vlachos, M Vlasak, N Vlasov, H Vogt, P Vokac, M Volpi, G Volpini, HVD Schmitt, JV Loeben, EV Toerne, V Vorobel, AP Vorobiev, V Vorwerk, M Vos, R Voss, TT Voss, JH Vossebeld, N Vranjes, V Vrba, M Vreeswijk, TV Anh, M Vudragovic, R Vuillermet, I Vukotic, P Wagner, H Wahlen, J Walbersloh, J Walder, R Walker, W Walkowiak, R Wall, C Wang, J Wang, JC Wang, SMW Wang, CP Ward, M Warsinsky, PM Watkins, AT Watson, G Watts, SW Watts, AT Waugh, BM Waugh, M Webel, J Weber, M Weber, MS Weber, P Weber, AR Weidberg, J Weingarten, C Weiser, H Wellenstein, PS Wells, M Wen, T Wenaus, S Wendler, T Wengler, S Wenig, N Wermes, M Werner, P Werner, U Werthenbach, M Wessels, SJ Wheeler-Ellis, SP Whitaker, A White, MJ White, S White, D Whiteson, D Whittington, F Wicek, D Wicke, FJ Wickens, W Wiedenmann, M Wielers, P Wienemann, C Wiglesworth, A Wildauer, MA Wildt, I Wilhelm, HG Wilkens, HH Williams, W Willis, S Willocq, JA Wilson, MG Wilson, A Wilson, I Wingerter-Seez, FW Winklmeier, L Winton, M Wittgen, MW Wolter, H Wolters, B Wosiek, J Wotschack, MJ Woudstra, K Wraight, C Wright, B Wrona, SL Wu, X Wu, S Xella, S Xie, Y Xie, G Xu, N Xu, A Yamamoto, S Yamamoto, T Yamamura, K Yamanaka, T Yamazaki, Y Yamazaki, Z Yan, H Yang, UK Yang, Y Yang, Z Yang, W-M Yao, Y Yao, Y Yasu, J Ye, S Ye, M Yilmaz, R Yoosoofmiya, K Yorita, R Yoshida, C Young, SP Youssef, D Yu, J Yu, M Yu, X Yu, J Yuan, L Yuan, A Yurkewicz, R Zaidan, AM Zaitsev, Z Zajacova, L Zanello, P Zarzhitsky, A Zaytsev, M Zdrazil, C Zeitnitz, M Zeller, PF Zema, C Zendler, AV Zenin, T Zenis, Z Zenonos, S Zenz, D Zerwas, Z Zhan, H Zhang, J Zhang, Q Zhang, W Zheng, X Zhang, L Zhao, T Zhao, Z Zhao, A Zhelezko, A Zhemchugov, S Zheng, J Zhong, B Zhou, N Zhou, S Zhou, Y Zhou, CG Zhu, H Zhu, Y Zhu, XA Zhuang, V Zhuravlov, B Zilka, R Zimmermann, S Zimmermann, M Zinna, M Ziolkowski, R Zitoun, L Zivkovic, VV Zmouchko, G Zobernig, A Zoccoli, MZ Nedden, V Zychacek

A detailed study is presented of the expected performance of the ATLAS detector. The reconstruction of tracks, leptons, photons, missing energy and jets is investigated, together with the performance of b-tagging and the trigger. The physics potential for a variety of interesting physics processes, within the Standard Model and beyond, is examined. The study comprises a series of notes based on simulations of the detector and physics processes, with particular emphasis given to the data expected from the first years of operation of the LHC at CERN.


Optimisation of the scintillation light collection and uniformity for the SoLid experiment

ArXiv (0)

Y Abreu, Y Amhis, W Beaumont, M Bongrand, D Boursette, BC Castle, K Clark, B Coupé, D Cussans, AD Roeck, D Durand, M Fallot, L Ghys, L Giot, K Graves, B Guillon, D Henaff, B Hosseini, S Ihantola, S Jenzer, S Kalcheva, LN Kalousis, M Labare, G Lehaut, S Manley, L Manzanillas, J Mermans, I Michiels, C Moortgat, D Newbold, J Park, V Pestel, K Petridis, I Piñera, L Popescu, D Ryckbosch, N Ryder, D Saunders, M-H Schune, M Settimo, L Simard, A Vacheret, G Vandierendonck, SV Dyck, PV Mulders, NV Remortel, S Vercaemer, M Verstraeten, B Viaud, A Weber, F Yermia

This paper presents a comprehensive optimisation study to maximise the light collection efficiency of scintillating cube elements used in the SoLid detector. Very short baseline reactor experiments, like SoLid, look for active to sterile neutrino oscillation signatures in the anti-neutrino energy spectrum as a function of the distance to the core and energy. Performing a precise search requires high light yield of the scintillating elements and uniformity of the response in the detector volume. The SoLid experiment uses an innovative hybrid technology with two different scintillators: polyvinyltoluene scintillator cubes and $^6$LiF:ZnS(Ag) screens. A precision test bench based on a $^{207}$Bi calibration source has been developed to study improvements on the energy resolution and uniformity of the prompt scintillation signal of antineutrino interactions. A trigger system selecting the 1~MeV conversion electrons provides a Gaussian energy peak and allows for precise comparisons of the different detector configurations that were considered to improve the SoLid detector light collection. The light collection efficiency is influenced by the choice of wrapping material, the position of the $^6$LiF:ZnS(Ag) screen, the type of fibre, the number of optical fibres and the type of mirror at the end of the fibre. This study shows that large gains in light collection efficiency are possible compared to the SoLid SM1 prototype. The light yield for the SoLid detector is expected to be at least 52$\pm$2 photo-avalanches per MeV per cube, with a relative non-uniformity of 6 %, demonstrating that the required energy resolution of at least 14 % at 1 MeV can be achieved.


TITUS: the Tokai Intermediate Tank for the Unoscillated Spectrum

arXiv (0)

C Andreopoulos, FCT Barbato, G Barker, G Barr, P Beltrame, V Berardi, T Berry, A Blondel, S Boyd, A Bravar, FS Cafagna, S Cartwright, MG Catanesi, C Checchia, A Cole, G Collazuol, GA Cowan, T Davenne, T Dealtry, C Densham, GD Rosa, FD Lodovico, E Drakopoulou, P Dunne, A Finch, M Fitton, D Hadley, K Hayrapetyan, RA Intonti, P Jonsson, A Kaboth, T Katori, L Kormos, Y Kudenko, J Lagoda, P Lasorak, M Laveder, M Lawe, P Litchfield, A Longhin, L Ludovici, W Ma, L Magaletti, M Malek, N McCauley, M Mezzetto, J Monroe, T Nicholls, M Needham, E Noah, F Nova, HM O'Keeffe, A Owen, V Palladino, D Payne, J Perkin, S Playfer, A Pritchard, N Prouse, E Radicioni, M Rayner, C Riccio, B Richards, J Rose, AC Ruggeri, R Shah, Y Shitov, C Simpson, G Sidiropoulos, T Stewart, R Terri, L Thompson, M Thorpe, Y Uchida, D Wark, MO Wascko, A Weber, JR Wilson

The TITUS, Tokai Intermediate Tank for Unoscillated Spectrum, detector, is a proposed Gd-doped Water Cherenkov tank with a magnetised muon range detector downstream. It is located at J-PARC at about 2 km from the neutrino target and it is proposed as a potential near detector for the Hyper-Kamiokande experiment. Assuming a beam power of 1.3 MW and 27.05 x 10^{21} protons-on-target the sensitivity to CP and mixing parameters achieved by Hyper-Kamiokande with TITUS as a near detector is presented. Also, the potential of the detector for cross sections and Standard Model parameter determination, supernova neutrino and dark matter are shown.


Multi-W Events at LHC from a Warped Extra Dimension with Custodial Symmetry

ArXiv (0)

C Dennis, MK Unel, G Servant, J Tseng

Randall-Sundrum models based on SU(2)_L * SU(2)_R with custodial symmetry are compelling frameworks for building alternative models of electroweak symmetry breaking. A particular feature of these models is the likely presence of light Kaluza-Klein fermions related to the right-handed top quark. These can be as light as a few hundred GeV and still compatible with EW precision constraints. In this article, we study the detectability of four-W final states at the LHC, which arise from the pair-production and tW decay of light Kaluza-Klein bottom quarks as well as light Kaluza-Klein quarks carrying electric charge 5/3.

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