Publications


First measurement of muon-neutrino disappearance in NOvA

PHYSICAL REVIEW D 93 (2016) ARTN 051104

P Adamson, C Ader, M Andrews, N Anfimov, I Anghel, K Arms, E Arrieta-Diaz, A Aurisano, DS Ayres, C Backhouse, M Baird, BA Bambah, K Bays, R Bernstein, M Betancourt, V Bhatnagar, B Bhuyan, J Bian, K Biery, T Blackburn, V Bocean, D Bogert, A Bolshakova, M Bowden, C Bower, D Broemmelsiek, C Bromberg, G Brunetti, X Bu, A Butkevich, D Capista, E Catano-Mur, TR Chase, S Childress, BC Choudhary, B Chowdhury, TE Coan, JAB Coelho, M Colo, J Cooper, L Corwin, D Cronin-Hennessy, A Cunningham, GS Davies, JP Davies, M Del Tutto, PF Derwent, KN Deepthi, D Demuth, S Desai, G Deuerling, A Devan, J Dey, R Dharmapalan, P Ding, S Dixon, Z Djurcic, EC Dukes, H Duyang, R Ehrlich, GJ Feldman, N Felt, EJ Fenyves, E Flumerfelt, S Foulkes, MJ Frank, W Freeman, M Gabrielyan, HR Gallagher, M Gebhard, T Ghosh, W Gilbert, A Giri, S Goadhouse, RA Gomes, L Goodenough, MC Goodman, V Grichine, N Grossman, R Group, J Grudzinski, V Guarino, B Guo, A Habig, T Handler, J Hartnell, R Hatcher, A Hatzikoutelis, K Heller, C Howcroft, J Huang, X Huang, J Hylen, M Ishitsuka, F Jediny, C Jensen, D Jensen, C Johnson, H Jostlein, GK Kafka, Y Kamyshkov, SMS Kasahara, S Kasetti, K Kephart, G Koizumi, S Kotelnikov, I Kourbanis, Z Krahn, V Kravtsov, A Kreymer, C Kulenberg, A Kumar, T Kutnink, R Kwarciancy, J Kwong, K Lang, A Lee, WM Lee, K Lee, S Lein, J Liu, M Lokajicek, J Lozier, Q Lu, P Lucas, S Luchuk, P Lukens, G Lukhanin, S Magill, K Maan, WA Mann, ML Marshak, M Martens, J Martincik, P Mason, K Matera, M Mathis, V Matveev, N Mayer, E McCluskey, R Mehdiyev, H Merritt, MD Messier, H Meyer, T Miao, D Michael, SP Mikheyev, WH Miller, SR Mishra, R Mohanta, A Moren, L Mualem, M Muether, S Mufson, J Musser, HB Newman, JK Nelson, E Niner, A Norman, J Nowak, Y Oksuzian, A Olshevskiy, J Oliver, T Olson, J Paley, P Pandey, A Para, RB Patterson, G Pawloski, N Pearson, D Perevalov, D Pershey, E Peterson, R Petti, S Phan-Budd, L Piccoli, A Pla-Dalmau, RK Plunkett, R Poling, B Potukuchi, F Psihas, D Pushka, X Qiu, N Raddatz, A Radovic, RA Rameika, R Ray, B Rebel, R Rechenmacher, B Reed, R Reilly, D Rocco, D Rodkin, K Ruddick, R Rusack, V Ryabov, K Sachdev, S Sahijpal, H Sahoo, O Samoylov, MC Sanchez, N Saoulidou, P Schlabach, J Schneps, R Schroeter, J Sepulveda-Quiroz, P Shanahan, B Sherwood, A Sheshukov, J Singh, V Singh, A Smith, D Smith, J Smolik, N Solomey, A Sotnikov, A Sousa, K Soustruznik, Y Stenkin, M Strait, L Suter, RL Talaga, MC Tamsett, S Tariq, P Tas, RJ Tesarek, RB Thayyullathil, K Thomsen, X Tian, SC Tognini, R Toner, J Trevor, G Tzanakos, J Urheim, P Vahle, L Valerio, L Vinton, T Vrba, AV Waldron, B Wang, Z Wang, A Weber, A Wehmann, D Whittington, N Wilcer, R Wildberger, D Wildman, K Williams, SG Wojcicki, K Wood, M Xiao, T Xin, N Yadav, S Yang, S Zadorozhnyy, J Zalesak, B Zamorano, A Zhao, J Zirnstein, R Zwaska, N Collaboration


Upper bound on neutrino mass based on T2K neutrino timing measurements

Physical Review D American Physical Society 93 (2016) ARTN 012006-

AC Kaboth, T Kajita, H Kakuno, J Kameda, Y Kanazawa, D Karlen, I Karpikov, T Katori, E Kearns, M Khabibullin, A Khotjantsev, D Kielczewska, T Kikawa, A Kilinski, J Kisiel, P Kitching, T Kobayashi, L Koch, T Koga, A Kolaceke, Y Koshio, W Kropp, R Kurjata, M Laveder, RP Litchfield

The Tokai to Kamioka (T2K) long-baseline neutrino experiment consists of a muon neutrino beam, produced at the J-PARC accelerator, a near detector complex and a large 295-km-distant far detector. The present work utilizes the T2K event timing measurements at the near and far detectors to study neutrino time of flight as a function of derived neutrino energy. Under the assumption of a relativistic relation between energy and time of flight, constraints on the neutrino rest mass can be derived. The sub-GeV neutrino beam in conjunction with timing precision of order tens of ns provide sensitivity to neutrino mass in the few MeV/c2 range. We study the distribution of relative arrival times of muon and electron neutrino candidate events at the T2K far detector as a function of neutrino energy. The 90% C.L. upper limit on the mixture of neutrino mass eigenstates represented in the data sample is found to be m2ν<5.6 MeV2/c4.


Theoretical predictions of transverse kinematic imbalance in neutrino-nucleus interactions

Proceedings, Prospects in Neutrino Physics (NuPhys2015): London, UK, December 16-18, 2015 (2016)

L Pickering, X Lu


Reconstruction of Energy Spectra of Neutrino Beams Independent of Nuclear Effects: Prospects for Current Experiments

JPS Conf. Proc. 12 (2016) 010034-010034

X-G Lu


Production of light nuclei and anti-nuclei in pp and Pb-Pb collisions at energies available at the CERN Large Hadron Collider

Phys. Rev. C93 (2016) 2

J Adam, others


Search for weakly decaying $øverlineΛ\mathrmn$ and $ΛΛ $ exotic bound states in central Pb-Pb collisions at $\sqrts_\rm NN$ = 2.76 TeV

Phys. Lett. B752 (2016) 267-277

J Adam, others


Measurement of the νμ charged-current quasielastic cross section on carbon with the ND280 detector at T2K

Physical Review D American Physical Society 92 (2015) 112003-

K Abe, J Adam, H Aihara, T Akiri, C Andreopoulos, S Aoki, A Ariga, S Assylbekov, D Autiero, M Barbi, GJ Barker, G Barr, P Bartet-Friburg, M Bass, M Batkiewicz, F Bay, V Berardi, BE Berger, S Berkman, S Bhadra, FDM Blaszczyk, A Blondel, C Bojechko, S Bolognesi, S Bordoni

<p style="text-align:justify;"> This paper reports a measurement by the T2K experiment of the ν μ charged current quasielastic (CCQE) cross section on a carbon target with the off-axis detector based on the observed distribution of muon momentum ( p μ ) and angle with respect to the incident neutrino beam ( θ μ ). The flux-integrated CCQE cross section was measured to be ⟨ σ ⟩ = ( 0.83 ± 0.12 ) × 10 − 38     cm 2 . The energy dependence of the CCQE cross section is also reported. The axial mass, M QE A , of the dipole axial form factor was extracted assuming the Smith-Moniz CCQE model with a relativistic Fermi gas nuclear model. Using the absolute (shape-only) p μ − cos θ μ distribution, the effective M QE A parameter was measured to be 1.2 6 + 0.21 − 0.18     GeV / c 2 ( 1.4 3 + 0.28 − 0.22     GeV / c 2 ).</p>


Production of inclusive Y(1S) and Y(2S) in p-Pb collisions at √sNN=5.02 TeV

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 740 (2015) 105-117

B Abelev, J Adam, D Adamová, MM Aggarwal, G Aglieri Rinella, M Agnello, A Agostinelli, N Agrawal, Z Ahammed, N Ahmad, I Ahmed, SU Ahn, SA Ahn, I Aimo, S Aiola, M Ajaz, A Akindinov, SN Alam, D Aleksandrov, B Alessandro, D Alexandre, A Alici, A Alkin, J Alme, T Alt, S Altinpinar, I Altsybeev, C Alves Garcia Prado, C Andrei, A Andronic, V Anguelov, J Anielski, T Antičić, F Antinori, P Antonioli, L Aphecetche, H Appelshäuser, S Arcelli, N Armesto, R Arnaldi, T Aronsson, IC Arsene, M Arslandok, A Augustinus, R Averbeck, TC Awes, MD Azmi, M Bach, A Badalà, YW Baek, S Bagnasco, R Bailhache, R Bala, A Baldisseri, F Baltasar Dos Santos Pedrosa, RC Baral, R Barbera, F Barile, GG Barnaföldi, LS Barnby, V Barret, J Bartke, E Bartsch, M Basile, N Bastid, S Basu, B Bathen, G Batigne, A Batista Camejo, B Batyunya, PC Batzing, C Baumann, IG Bearden, H Beck, C Bedda, NK Behera, I Belikov, F Bellini, R Bellwied, R Belmont, E Belmont-Moreno, V Belyaev, G Bencedi, S Beole, I Berceanu, A Bercuci, Y Berdnikov, D Berenyi, RA Bertens, D Berzano, L Betev, A Bhasin, IR Bhat

© 2014 The Authors. We report on the production of inclusive Y(1S) and Y(2S) in p-Pb collisions at √sNN=5.02 TeV at the LHC. The measurement is performed with the ALICE detector at backward (-4.46 < y cms < -2.96) and forward (2.03 < y cms < 3.53) rapidity down to zero transverse momentum. The production cross sections of the Y(1S) and Y(2S) are presented, as well as the nuclear modification factor and the ratio of the forward to backward yields of Y(1S). A suppression of the inclusive Y(1S) yield in p-Pb collisions with respect to the yield from pp collisions scaled by the number of binary nucleon-nucleon collisions is observed at forward rapidity but not at backward rapidity. The results are compared to theoretical model calculations including nuclear shadowing or partonic energy loss effects.


Time link calibration using two mobile TWSTFT stations for T2K experiment

2014 European Frequency and Time Forum, EFTF 2014 (2015) 105-108

M Fujieda, T Gotoh, R Ichikawa, R Tabuchi, M Aida, HG Berns, C Bronner, K Suzuki, K Connolly, P Destefano, N Dreyer, J Wilkes, M Dziewiecki, R Kurjata, M Ziembicki, C Greenley, T Kutter, O Perevozchikov, Y Hayato, T Maruyama, K Sakashita, C Metelko, A Weber, E Reinherz-Aronis, W Toki

© 2014 IEEE. The T2K experiment uses GPS system to synchronize the timing between J-PARC (Tokai) and Super-Kamiokande (Kamioka). The GPS link was calibrated with 1-ns uncertainty by two mobile TWSTFT stations to improve the synchronization accuracy.


Antenna-coupled TES bolometers used in BICEP2, keck array, and spider

Astrophysical Journal 812 (2015)

PAR Ade, RW Aikin, M Amiri, D Barkats, SJ Benton, CA Bischoff, JJ Bock, JA Bonetti, JA Brevik, I Buder, E Bullock, G Chattopadhyay, G Davis, PK Day, CD Dowell, L Duband, JP Filippini, S Fliescher, SR Golwala, M Halpern, M Hasselfield, SR Hildebrandt, GC Hilton, V Hristov, H Hui, KD Irwin, WC Jones, KS Karkare, JP Kaufman, BG Keating, S Kefeli, SA Kernasovskiy, JM Kovac, CL Kuo, HG Leduc, EM Leitch, N Llombart, M Lueker, P Mason, K Megerian, L Moncelsi, CB Netterfield, HT Nguyen, R O'Brient, RWO Iv, A Orlando, C Pryke, AS Rahlin, CD Reintsema, S Richter, MC Runyan, R Schwarz, CD Sheehy, ZK Staniszewski, RV Sudiwala, GP Teply, JE Tolan, A Trangsrud, RS Tucker, AD Turner, AG Vieregg, A Weber, DV Wiebe, P Wilson, CL Wong, KW Yoon, J Zmuidzinas

© 2015. The American Astronomical Society. All rights reserved.. We have developed antenna-coupled transition-edge sensor bolometers for a wide range of cosmic microwave background (CMB) polarimetry experiments, including Bicep2, Keck Array, and the balloon borne Spider. These detectors have reached maturity and this paper reports on their design principles, overall performance, and key challenges associated with design and production. Our detector arrays repeatedly produce spectral bands with 20%-30% bandwidth at 95, 150, or 230 GHz. The integrated antenna arrays synthesize symmetric co-aligned beams with controlled side-lobe levels. Cross-polarized response on boresight is typically ∼0.5%, consistent with cross-talk in our multiplexed readout system. End-to-end optical efficiencies in our cameras are routinely 35% or higher, with per detector sensitivities of NET ∼ 300 μKCMBs. Thanks to the scalability of this design, we have deployed 2560 detectors as 1280 matched pairs in Keck Array with a combined instantaneous sensitivity of , as measured directly from CMB maps in the 2013 season. Similar arrays have recently flown in the Spider instrument, and development of this technology is ongoing.


Reconstruction of energy spectra of neutrino beams independent of nuclear effects

PHYSICAL REVIEW D 92 (2015) ARTN 051302

X-G Lu, D Coplowe, R Shah, G Barr, D Wark, A Weber


Precision measurement of the speed of propagation of neutrinos using the MINOS detectors

PHYSICAL REVIEW D 92 (2015) ARTN 052005

P Adamson, I Anghel, N Ashby, A Aurisano, G Barr, M Bishai, A Blake, GJ Bock, D Bogert, R Bumgarner, SV Cao, CM Castromonte, S Childress, JAB Coelho, L Corwin, D Cronin-Hennessy, JK de Jong, AV Devan, NE Devenish, MV Diwan, CO Escobar, JJ Evans, E Falk, GJ Feldman, B Fonville, MV Frohne, HR Gallagher, RA Gomes, MC Goodman, P Gouffon, N Graf, R Gran, K Grzelak, A Habig, SR Hahn, J Hartnell, R Hatcher, J Hirschauer, A Holin, J Huang, J Hylen, GM Irwin, Z Isvan, C James, SR Jefferts, D Jensen, T Kafka, SMS Kasahara, G Koizumi, M Kordosky, A Kreymer, K Lang, J Ling, PJ Litchfield, P Lucas, WA Mann, ML Marshak, D Matsakis, N Mayer, A McKinley, C McGivern, MM Medeiros, R Mehdiyev, JR Meier, MD Messier, WH Miller, SR Mishra, S Mitchell, SM Sher, CD Moore, L Mualem, J Musser, D Naples, JK Nelson, HB Newman, RJ Nichol, JA Nowak, J O'Connor, M Orchanian, RB Pahlka, J Paley, TE Parker, RB Patterson, G Pawloski, A Perch, S Phan-Budd, RK Plunkett, N Poonthottathil, E Powers, X Qiu, A Radovic, B Rebel, K Ridl, S Roemisch, C Rosenfeld, HA Rubin, MC Sanchez, J Schneps, A Schreckenberger, P Schreiner, R Sharma, A Sousa, N Tagg, RL Talaga, J Thomas, MA Thomson, X Tian, A Timmons, SC Tognini, R Toner, D Torretta, J Urheim, P Vahle, B Viren, A Weber, RC Webb, C White, L Whitehead, LH Whitehead, SG Wojcicki, J Wright, V Zhang, R Zwaska, MINOS Collaboration, NIST, USNO


Bose-Einstein correlations in hadron-pairs from lepto-production on nuclei ranging from hydrogen to xenon

EUROPEAN PHYSICAL JOURNAL C 75 (2015) ARTN 361

A Airapetian, N Akopov, Z Akopov, EC Aschenauer, W Augustyniak, R Avakian, A Avetissian, E Avetisyan, S Belostotski, N Bianchi, HP Blok, A Borissov, V Bryzgalov, J Burns, M Capiluppi, GP Capitani, E Cisbani, G Ciullo, M Contalbrigo, PF Dalpiaz, W Deconinck, R De Leo, E De Sanctis, M Diefenthaler, P Di Nezza, M Dueren, G Elbakian, F Ellinghaus, E Etzelmueller, R Fabbri, A Fantoni, L Felawka, S Frullani, G Gapienko, V Gapienko, J Garay Garcia, F Garibaldi, G Gavrilov, V Gharibyan, F Giordano, S Gliske, M Hartig, D Hasch, Y Holler, I Hristova, Y Imazu, A Ivanilov, HE Jackson, S Joosten, R Kaiser, G Karyan, T Keri, E Kinney, A Kisselev, V Korotkov, V Kozlov, P Kravchenko, VG Krivokhijine, L Lagamba, L Lapikas, I Lehmann, P Lenisa, AL Ruiz, W Lorenzon, X-G Lu, B-Q Ma, D Mahon, NCR Makins, Y Mao, B Marianski, AM de la Ossa, H Marukyan, Y Miyachi, A Movsisyan, M Murray, A Mussgiller, E Nappi, Y Naryshkin, A Nass, M Negodaev, W-D Nowak, LL Pappalardo, R Perez-Benito, A Petrosyan, PE Reimer, AR Reolon, C Riedl, K Rith, G Rosner, A Rostomyan, J Rubin, D Ryckbosch, Y Salomatin, A Schaefer, G Schnell, B Seitz, T-A Shibata, V Shutov, M Stahl, M Stancari, M Statera, JJM Steijger, S Taroian, A Terkulov, R Truty, A Trzcinski, M Tytgat, Y Van Haarlem, C Van Hulse, D Veretennikov, V Vikhrov, I Vilardi, S Wang, S Yaschenko, Z Ye, S Yen, B Zihlmann, P Zupranski


Charged jet cross sections and properties in proton-proton collisions at s = 7 TeV

Physical Review D - Particles, Fields, Gravitation and Cosmology 91 (2015)

B Abelev, J Adam, D Adamová, MM Aggarwal, G Aglieri Rinella, M Agnello, A Agostinelli, N Agrawal, Z Ahammed, N Ahmad, I Ahmed, SU Ahn, SA Ahn, I Aimo, S Aiola, M Ajaz, A Akindinov, SN Alam, D Aleksandrov, B Alessandro, D Alexandre, A Alici, A Alkin, J Alme, T Alt, S Altinpinar, I Altsybeev, C Alves Garcia Prado, C Andrei, A Andronic, V Anguelov, J Anielski, T Antičić, F Antinori, P Antonioli, L Aphecetche, H Appelshäuser, S Arcelli, N Armesto, R Arnaldi, T Aronsson, IC Arsene, M Arslandok, A Augustinus, R Averbeck, TC Awes, MD Azmi, M Bach, A Badalà, YW Baek, S Bagnasco, R Bailhache, R Bala, A Baldisseri, F Baltasar Dos Santos Pedrosa, RC Baral, R Barbera, F Barile, GG Barnaföldi, LS Barnby, V Barret, J Bartke, M Basile, N Bastid, S Basu, B Bathen, G Batigne, A Batista Camejo, B Batyunya, PC Batzing, C Baumann, IG Bearden, H Beck, C Bedda, NK Behera, I Belikov, F Bellini, R Bellwied, E Belmont-Moreno, R Belmont, V Belyaev, G Bencedi, S Beole, I Berceanu, A Bercuci, Y Berdnikov, D Berenyi, ME Berger, RA Bertens, D Berzano, L Betev, A Bhasin, IR Bhat, AK Bhati, B Bhattacharjee, J Bhom, L Bianchi, N Bianchi, C Bianchin, J Bielčík

© 2015 CERN, for the ALICE Collaboration. The differential charged jet cross sections, jet fragmentation distributions, and jet shapes are measured in minimum bias proton-proton collisions at center-of-mass energy s=7TeV using the ALICE detector at the LHC. Jets are reconstructed from charged particle momenta in the midrapidity region using the sequential recombination kT and anti-kT as well as the SISCone jet finding algorithms with several resolution parameters in the range R=0.2-0.6. Differential jet production cross sections measured with the three jet finders are in agreement in the transverse momentum (pT) interval 20<pTjet,ch<100GeV/c. They are also consistent with prior measurements carried out at the LHC by the ATLAS Collaboration. The jet charged particle multiplicity rises monotonically with increasing jet pT, in qualitative agreement with prior observations at lower energies. The transverse profiles of leading jets are investigated using radial momentum density distributions as well as distributions of the average radius containing 80% (⟨R80⟩) of the reconstructed jet pT. The fragmentation of leading jets with R=0.4 using scaled pT spectra of the jet constituents is studied. The measurements are compared to model calculations from event generators (PYTHIA, PHOJET, HERWIG). The measured radial density distributions and ⟨R80⟩ distributions are well described by the PYTHIA model (tune Perugia-2011). The fragmentation distributions are better described by HERWIG.


Elliptic flow of identified hadrons in Pb-Pb collisions at (Formula presented.) = 2.76 TeV

Journal of High Energy Physics 2015 (2015)

A The ALICE collaboration, B Abelev, J Adam, D Adamová, MM Aggarwal, M Agnello, A Agostinelli, N Agrawal, Z Ahammed, N Ahmad, I Ahmed, SU Ahn, SA Ahn, I Aimo, S Aiola, M Ajaz, A Akindinov, SN Alam, D Aleksandrov, B Alessandro, D Alexandre, A Alici, A Alkin, J Alme, T Alt, S Altinpinar, I Altsybeev, C Alves Garcia Prado, C Andrei, A Andronic, V Anguelov, J Anielski, T Antičić, F Antinori, P Antonioli, L Aphecetche, H Appelshäuser, S Arcelli, N Armesto, R Arnaldi, T Aronsson, IC Arsene, M Arslandok, A Augustinus, R Averbeck, TC Awes, MD Azmi, M Bach, A Badalà, YW Baek, S Bagnasco, R Bailhache, R Bala, A Baldisseri, F Baltasar Dos Santos Pedrosa, RC Baral, R Barbera, F Barile, GG Barnaföldi, LS Barnby, V Barret, J Bartke, M Basile, N Bastid, S Basu, B Bathen, G Batigne, A Batista Camejo, B Batyunya, PC Batzing, C Baumann, IG Bearden, H Beck, C Bedda, NK Behera, I Belikov, F Bellini, R Bellwied, E Belmont-Moreno, R Belmont, V Belyaev, G Bencedi, S Beole, I Berceanu, A Bercuci, Y Berdnikov, D Berenyi, ME Berger, RA Bertens, D Berzano, L Betev, A Bhasin, IR Bhat, AK Bhati, B Bhattacharjee, J Bhom, L Bianchi, N Bianchi, C Bianchin, J Bielčík

© 2015, The Author(s). The elliptic flow coefficient (v<inf>2</inf>) of identified particles in Pb-Pb collisions at (Formula presented.) was measured with the ALICE detector at the Large Hadron Collider (LHC). The results were obtained with the Scalar Product method, a two-particle correlation technique, using a pseudo-rapidity gap of |Δη| > 0.9 between the identified hadron under study and the reference particles. The v<inf>2</inf> is reported for (Formula presented.) in several collision centralities. In the low transverse momentum (p<inf>T</inf>) region, p<inf>T</inf>< 3 GeV/c, v<inf>2</inf>(p<inf>T</inf>) exhibits a particle mass dependence consistent with elliptic flow accompanied by the transverse radial expansion of the system with a common velocity field. The experimental data for π<sup>±</sup> and the combined K<sup>±</sup> and K<inf>S</inf> <sup>0</sup> results, are described fairly well by hydrodynamic calculations coupled to a hadronic cascade model (VISHNU) for central collisions. However, the same calculations fail to reproduce the v<inf>2</inf>(p<inf>T</inf>) for (Formula presented.). For transverse momentum values larger than about 3 GeV/c, particles tend to group according to their type, i.e. mesons and baryons. The present measurements exhibit deviations from the number of constituent quark (NCQ) scaling at the level of ±20% for p<inf>T</inf>> 3 GeV/c.


BICEP2/KECK ARRAY. IV. OPTICAL CHARACTERIZATION and PERFORMANCE OF THE BICEP2 AND KECK ARRAY EXPERIMENTS

Astrophysical Journal 806 (2015)

PAR Ade, RW Aikin, D Barkats, SJ Benton, CA Bischoff, JJ Bock, KJ Bradford, JA Brevik, I Buder, E Bullock, CD Dowell, L Duband, JP Filippini, S Fliescher, SR Golwala, M Halpern, M Hasselfield, SR Hildebrandt, GC Hilton, H Hui, KD Irwin, JH Kang, KS Karkare, JP Kaufman, BG Keating, S Kefeli, SA Kernasovskiy, JM Kovac, CL Kuo, EM Leitch, M Lueker, KG Megerian, CB Netterfield, HT Nguyen, R O'Brient, RW Ogburn, A Orlando, C Pryke, S Richter, R Schwarz, CD Sheehy, ZK Staniszewski, RV Sudiwala, GP Teply, K Thompson, JE Tolan, AD Turner, AG Vieregg, AC Weber, CL Wong, KW Yoon

© 2015. The American Astronomical Society. All rights reserved. BICEP2 and the Keck Array are polarization-sensitive microwave telescopes that observe the cosmic microwave background (CMB) from the South Pole at degree angular scales in search of a signature of inflation imprinted as B-mode polarization in the CMB. BICEP2 was deployed in late 2009, observed for three years until the end of 2012 at 150 GHz with 512 antenna-coupled transition edge sensor bolometers, and has reported a detection of B-mode polarization on degree angular scales. The Keck Array was first deployed in late 2010 and will observe through 2016 with five receivers at several frequencies (95, 150, and 220 GHz). BICEP2 and the Keck Array share a common optical design and employ the field-proven BICEP1 strategy of using small-aperture, cold, on-axis refractive optics, providing excellent control of systematics while maintaining a large field of view. This design allows for full characterization of far-field optical performance using microwave sources on the ground. Here we describe the optical design of both instruments and report a full characterization of the optical performance and beams of BICEP2 and the Keck Array at 150 GHz.


Measurement of the electron neutrino charged-current interaction rate on water with the T2K ND280 pi(0) detector

PHYSICAL REVIEW D 91 (2015) ARTN 112010

K Abe, J Adam, H Aihara, C Andreopoulos, S Aoki, A Ariga, S Assylbekov, D Autiero, M Barbi, GJ Barker, G Barr, P Bartet-Friburg, M Bass, M Batkiewicz, F Bay, V Berardi, BE Berger, S Berkman, S Bhadra, FDM Blaszczyk, A Blondel, S Bolognesi, S Bordoni, SB Boyd, D Brailsford, A Bravar, C Bronner, N Buchanan, RG Calland, JC Rodriguez, SL Cartwright, R Castillo, MG Catanesi, A Cervera, D Cherdack, N Chikuma, G Christodoulou, A Clifton, J Coleman, SJ Coleman, G Collazuol, K Connolly, L Cremonesi, A Dabrowska, R Das, S Davis, P de Perio, G De Rosa, T Dealtry, SR Dennis, C Densham, D Dewhurst, F Di Lodovico, S Di Luise, S Dolan, O Drapier, K Duffy, J Dumarchez, S Dytman, M Dziewiecki, S Emery-Schrenk, A Ereditato, L Escudero, T Feusels, AJ Finch, GA Fiorentini, M Friend, Y Fujii, Y Fukuda, AP Furmanski, V Galymov, A Garcia, S Giffin, C Giganti, K Gilje, D Goeldi, T Golan, M Gonin, N Grant, D Gudin, DR Hadley, L Haegel, A Haesler, MD Haigh, P Hamilton, D Hansen, T Hara, M Hartz, T Hasegawa, NC Hastings, T Hayashino, Y Hayato, RL Helmer, M Hierholzer, J Hignight, A Hillairet, A Himmel, T Hiraki, S Hirota, J Holeczek, S Horikawa, F Hosomi, K Huang, AK Ichikawa, K Ieki, M Ieva, M Ikeda, J Imber, J Insler, TJ Irvine, T Ishida, T Ishii, E Iwai, K Iwamoto, K Iyogi, A Izmaylov, A Jacob, B Jamieson, M Jiang, S Johnson, JH Jo, P Jonsson, CK Jung, M Kabirnezhad, AC Kaboth, T Kajita, H Kakuno, J Kameda, Y Kanazawa, D Karlen, I Karpikov, T Katori, E Kearns, M Khabibullin, A Khotjantsev, D Kielczewska, T Kikawa, A Kilinski, J Kim, S King, J Kisiel, P Kitching, T Kobayashi, L Koch, T Koga, A Kolaceke, A Konaka, A Kopylov, LL Kormos, A Korzenev, Y Koshio, W Kropp, H Kubo, Y Kudenko, R Kurjata, T Kutter, J Lagoda, I Lamont, E Larkin, M Laveder, M Lawe, M Lazos, T Lindner, C Lister, RP Litchfield, A Longhin, JP Lopez, L Ludovici, L Magaletti, K Mahn, M Malek, S Manly, AD Marino, J Marteau, JF Martin, P Martins, S Martynenko, T Maruyama, V Matveev, K Mavrokoridis, E Mazzucato, M McCarthy, N McCauley, KS McFarland, C McGrew, A Mefodiev, C Metelko, M Mezzetto, P Mijakowski, CA Miller, A Minamino, O Mineev, S Mine, A Missert, M Miura, S Moriyama, TA Mueller, A Murakami, M Murdoch, S Murphy, J Myslik, T Nakadaira, M Nakahata, KG Nakamura, K Nakamura, S Nakayama, T Nakaya, K Nakayoshi, C Nantais, C Nielsen, M Nirkko, K Nishikawa, Y Nishimura, J Nowak, HM O'Keeffe, R Ohta, K Okumura, T Okusawa, W Oryszczak, SM Oser, T Ovsyannikova, RA Owen, Y Oyama, V Palladino, JL Palomino, V Paolone, D Payne, O Perevozchikov, JD Perkin, Y Petrov, L Pickard, ESP Guerra, C Pistillo, P Plonski, E Poplawska, B Popov, M Posiadala-Zezula, J-M Poutissou, R Poutissou, P Przewlocki, B Quilain, E Radicioni, PN Ratoff, M Ravonel, MAM Rayner, A Redij, M Reeves, E Reinherz-Aronis, C Riccio, PA Rodrigues, P Rojas, E Rondio, S Roth, A Rubbia, D Ruterbories, A Rychter, R Sacco, K Sakashita, F Sanchez, F Sato, E Scantamburlo, K Scholberg, S Schoppmann, JD Schwehr, M Scott, Y Seiya, T Sekiguchi, H Sekiya, D Sgalaberna, R Shah, A Shaikhiev, F Shaker, D Shaw, M Shiozawa, S Short, Y Shustrov, P Sinclair, B Smith, M Smy, JT Sobczyk, H Sobel, M Sorel, L Southwell, P Stamoulis, J Steinmann, Y Suda, A Suzuki, K Suzuki, SY Suzuki, Y Suzuki, R Tacik, M Tada, S Takahashi, A Takeda, Y Takeuchi, HK Tanaka, HA Tanaka, MM Tanaka, D Terhorst, R Terri, LF Thompson, A Thorley, S Tobayama, W Toki, T Tomura, C Touramanis, T Tsukamoto, M Tzanov, Y Uchida, A Vacheret, M Vagins, G Vasseur, T Wachala, K Wakamatsu, CW Walter, D Wark, W Warzycha, MO Wascko, A Weber, R Wendell, RJ Wilkes, MJ Wilking, C Wilkinson, Z Williamson, JR Wilson, RJ Wilson, T Wongjirad, Y Yamada, K Yamamoto, C Yanagisawa, T Yano, S Yen, N Yershov, M Yokoyama, J Yoo, K Yoshida, T Yuan, M Yu, A Zalewska, J Zalipska, L Zambelli, K Zaremba, M Ziembicki, ED Zimmerman, M Zito, J Zmuda, T Collaboration


Observation of seasonal variation of atmospheric multiple-muon events in the MINOS Near and Far Detectors

PHYSICAL REVIEW D 91 (2015) ARTN 112006

P Adamson, I Anghel, A Aurisano, G Barr, M Bishai, A Blake, GJ Bock, D Bogert, SV Cao, CM Castromonte, S Childress, JAB Coelho, L Corwin, D Cronin-Hennessy, JK de Jong, AV Devan, NE Devenish, MV Diwan, CO Escobar, JJ Evans, E Falk, GJ Feldman, MV Frohne, HR Gallagher, RA Gomes, MC Goodman, P Gouffon, N Graf, R Gran, K Grzelak, A Habig, SR Hahn, J Hartnell, R Hatcher, A Holin, J Huang, J Hylen, GM Irwin, Z Isvan, C James, D Jensen, T Kafka, SMS Kasahara, G Koizumi, M Kordosky, A Kreymer, K Lang, J Ling, PJ Litchfield, P Lucas, WA Mann, ML Marshak, N Mayer, C McGivern, MM Medeiros, R Mehdiyev, JR Meier, MD Messier, WH Miller, SR Mishra, SM Sher, CD Moore, L Mualem, J Musser, D Naples, JK Nelson, HB Newman, RJ Nichol, JA Nowak, J O'Connor, M Orchanian, S Osprey, RB Pahlka, J Paley, RB Patterson, G Pawloski, A Perch, S Phan-Budd, RK Plunkett, N Poonthottathil, X Qiu, A Radovic, B Rebel, C Rosenfeld, HA Rubin, MC Sanchez, J Schneps, A Schreckenberger, P Schreiner, R Sharma, A Sousa, N Tagg, RL Talaga, J Thomas, MA Thomson, X Tian, A Timmons, SC Tognini, R Toner, D Torretta, J Urheim, P Vahle, B Viren, A Weber, RC Webb, C White, L Whitehead, LH Whitehead, SG Wojcicki, R Zwaska, MINOS Collaboration


Centrality dependence of particle production in p-Pb collisions at s NN =5.02 TeV

Physical Review C - Nuclear Physics 91 (2015)

J Adam, D Adamová, MM Aggarwal, G Aglieri Rinella, M Agnello, A Agostinelli, N Agrawal, Z Ahammed, I Ahmed, SU Ahn, I Aimo, S Aiola, M Ajaz, A Akindinov, SN Alam, D Aleksandrov, B Alessandro, D Alexandre, R Alfaro Molina, A Alici, A Alkin, J Alme, T Alt, S Altinpinar, I Altsybeev, C Alves Garcia Prado, C Andrei, A Andronic, V Anguelov, J Anielski, T Antičić, F Antinori, P Antonioli, L Aphecetche, H Appelshäuser, S Arcelli, N Armesto, R Arnaldi, T Aronsson, IC Arsene, M Arslandok, A Augustinus, R Averbeck, MD Azmi, M Bach, A Badalà, YW Baek, S Bagnasco, R Bailhache, R Bala, A Baldisseri, M Ball, F Baltasar Dos Santos Pedrosa, RC Baral, AM Barbano, R Barbera, F Barile, GG Barnaföldi, LS Barnby, V Barret, P Bartalini, J Bartke, E Bartsch, M Basile, N Bastid, S Basu, B Bathen, G Batigne, A Batista Camejo, B Batyunya, PC Batzing, IG Bearden, H Beck, C Bedda, NK Behera, I Belikov, F Bellini, H Bello Martinez, R Bellwied, R Belmont, E Belmont-Moreno, V Belyaev, G Bencedi, S Beole, I Berceanu, A Bercuci, Y Berdnikov, D Berenyi, RA Bertens, D Berzano, L Betev, A Bhasin, IR Bhat, AK Bhati, B Bhattacharjee, J Bhom, L Bianchi, N Bianchi, C Bianchin, J Bielčík

© 2015 CERN, for the ALICE Collaboration. We report measurements of the primary charged-particle pseudorapidity density and transverse momentum distributions in p-Pb collisions at sNN=5.02TeV and investigate their correlation with experimental observables sensitive to the centrality of the collision. Centrality classes are defined by using different event-activity estimators, i.e., charged-particle multiplicities measured in three different pseudorapidity regions as well as the energy measured at beam rapidity (zero degree). The procedures to determine the centrality, quantified by the number of participants (Npart) or the number of nucleon-nucleon binary collisions (Ncoll) are described. We show that, in contrast to Pb-Pb collisions, in p-Pb collisions large multiplicity fluctuations together with the small range of participants available generate a dynamical bias in centrality classes based on particle multiplicity. We propose to use the zero-degree energy, which we expect not to introduce a dynamical bias, as an alternative event-centrality estimator. Based on zero-degree energy-centrality classes, the Npart dependence of particle production is studied. Under the assumption that the multiplicity measured in the Pb-going rapidity region scales with the number of Pb participants, an approximate independence of the multiplicity per participating nucleon measured at mid-rapidity of the number of participating nucleons is observed. Furthermore, at high-pT the p-Pb spectra are found to be consistent with the pp spectra scaled by Ncoll for all centrality classes. Our results represent valuable input for the study of the event-activity dependence of hard probes in p-Pb collisions and, hence, help to establish baselines for the interpretation of the Pb-Pb data.


Measurement of the nu(mu) charged current quasielastic cross section on carbon with the T2K on-axis neutrino beam

PHYSICAL REVIEW D 91 (2015) ARTN 112002

K Abe, J Adam, H Aihara, C Andreopoulos, S Aoki, A Ariga, S Assylbekov, D Autiero, M Barbi, GJ Barker, G Barr, P Bartet-Friburg, M Bass, M Batkiewicz, F Bay, V Berardi, BE Berger, S Berkman, S Bhadra, FDM Blaszczyk, A Blondel, S Bolognesi, S Bordoni, SB Boyd, D Brailsford, A Bravar, C Bronner, N Buchanan, RG Calland, J Caravaca Rodriguez, SL Cartwright, R Castillo, MG Catanesi, A Cervera, D Cherdack, N Chikuma, G Christodoulou, A Clifton, J Coleman, SJ Coleman, G Collazuol, K Connolly, L Cremonesi, A Dabrowska, I Danko, R Das, S Davis, P de Perio, G De Rosa, T Dealtry, SR Dennis, C Densham, D Dewhurst, F Di Lodovico, S Di Luise, S Dolan, O Drapier, K Duffy, J Dumarchez, S Dytman, M Dziewiecki, S Emery-Schrenk, A Ereditato, L Escudero, C Ferchichi, T Feusels, AJ Finch, GA Fiorentini, M Friend, Y Fujii, Y Fukuda, AP Furmanski, V Galymov, A Garcia, S Giffin, C Giganti, K Gilje, D Goeldi, T Golan, M Gonin, N Grant, D Gudin, DR Hadley, L Haegel, A Haesler, MD Haigh, P Hamilton, D Hansen, T Hara, M Hartz, T Hasegawa, NC Hastings, T Hayashino, Y Hayato, C Hearty, RL Helmer, M Hierholzer, J Hignight, A Hillairet, A Himmel, T Hiraki, S Hirota, J Holeczek, S Horikawa, F Hosomi, K Huang, AK Ichikawa, K Ieki, M Ieva, M Ikeda, J Imber, J Insler, TJ Irvine, T Ishida, T Ishii, E Iwai, K Iwamoto, K Iyogi, A Izmaylov, A Jacob, B Jamieson, M Jiang, S Johnson, JH Jo, P Jonsson, CK Jung, M Kabirnezhad, AC Kaboth, T Kajita, H Kakuno, J Kameda, Y Kanazawa, D Karlen, I Karpikov, T Katori, E Kearns, M Khabibullin, A Khotjantsev, D Kielczewska, T Kikawa, A Kilinski, J Kim, S King, J Kisiel, P Kitching, T Kobayashi, L Koch, T Koga, A Kolaceke, A Konaka, A Kopylov, LL Kormos, A Korzenev, Y Koshio, W Kropp, H Kubo, Y Kudenko, R Kurjata, T Kutter, J Lagoda, I Lamont, E Larkin, M Laveder, M Lawe, M Lazos, T Lindner, C Lister, RP Litchfield, A Longhin, JP Lopez, L Ludovici, L Magaletti, K Mahn, M Malek, S Manly, AD Marino, J Marteau, JF Martin, P Martins, S Martynenko, T Maruyama, V Matveev, K Mavrokoridis, E Mazzucato, M McCarthy, N McCauley, KS McFarland, C McGrew, A Mefodiev, C Metelko, M Mezzetto, P Mijakowski, CA Miller, A Minamino, O Mineev, A Missert, M Miura, S Moriyama, TA Mueller, A Murakami, M Murdoch, S Murphy, J Myslik, T Nakadaira, M Nakahata, KG Nakamura, K Nakamura, S Nakayama, T Nakaya, K Nakayoshi, C Nantais, C Nielsen, M Nirkko, K Nishikawa, Y Nishimura, J Nowak, HM O'Keeffe, R Ohta, K Okumura, T Okusawa, W Oryszczak, SM Oser, T Ovsyannikova, RA Owen, Y Oyama, V Palladino, JL Palomino, V Paolone, D Payne, O Perevozchikov, JD Perkin, Y Petrov, L Pickard, ESP Guerra, C Pistillo, P Plonski, E Poplawska, B Popov, M Posiadala-Zezula, J-M Poutissou, R Poutissou, P Przewlocki, B Quilain, E Radicioni, PN Ratoff, M Ravonel, MAM Rayner, A Redij, M Reeves, E Reinherz-Aronis, C Riccio, PA Rodrigues, P Rojas, E Rondio, S Roth, A Rubbia, D Ruterbories, A Rychter, R Sacco, K Sakashita, F Sanchez, F Sato, E Scantamburlo, K Scholberg, S Schoppmann, J Schwehr, M Scott, Y Seiya, T Sekiguchi, H Sekiya, D Sgalaberna, R Shah, F Shaker, D Shaw, M Shiozawa, S Short, Y Shustrov, P Sinclair, B Smith, M Smy, JT Sobczyk, H Sobel, M Sorel, L Southwell, P Stamoulis, J Steinmann, B Still, Y Suda, A Suzuki, K Suzuki, SY Suzuki, Y Suzuki, R Tacik, M Tada, S Takahashi, A Takeda, Y Takeuchi, HK Tanaka, HA Tanaka, MM Tanaka, D Terhorst, R Terri, LF Thompson, A Thorley, S Tobayama, W Toki, T Tomura, Y Totsuka, C Touramanis, T Tsukamoto, M Tzanov, Y Uchida, A Vacheret, M Vagins, G Vasseur, T Wachala, K Wakamatsu, CW Walter, D Wark, W Warzycha, MO Wascko, A Weber, R Wendell, RJ Wilkes, MJ Wilking, C Wilkinson, Z Williamson, JR Wilson, RJ Wilson, T Wongjirad, Y Yamada, K Yamamoto, C Yanagisawa, T Yano, S Yen, N Yershov, M Yokoyama, J Yoo, K Yoshida, T Yuan, M Yu, A Zalewska, J Zalipska, L Zambelli, K Zaremba, M Ziembicki, ED Zimmerman, M Zito, J Zmuda, T Collaboration

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