Publications by Steve Biller


Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory

PHYSICAL REVIEW D 99 (2019) ARTN 112007

B Aharmim, SN Ahmed, AE Anthony, N Barros, EW Beier, A Bellerive, B Beltran, M Bergevin, SD Biller, R Bonventre, K Boudjemline, MG Boulay, B Cai, EJ Callaghan, J Caravaca, YD Chan, D Chauhan, M Chen, BT Cleveland, GA Cox, X Dai, H Deng, FB Descamps, JA Detwiler, PJ Doe, G Doucas, P-L Drouin, M Dunford, SR Elliott, HC Evans, GT Ewan, J Farine, H Fergani, F Fleurot, RJ Ford, JA Formaggio, N Gagnon, K Gilje, 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, A Kruger, C Kraus, CB Krauss, T Kutter, CCM Kyba, BJ Land, R Lange, J Law, IT Lawson, KT Lesko, JR Leslie, I Levine, JC Loach, R MacLellan, S Majerus, HB Mak, J Maneira, RD Martin, A Mastbaum, N McCauley, AB McDonald, SR McGee, ML Miller, B Monreal, J Monroe, BG Nickel, AJ Noble, HM O'Keeffe, NS Oblath, CE Okada, 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, D Sinclair, J Singh, P Skensved, M Smiley, TJ Sonley, LC Stonehill, G Tesic, N Tolich, T Tsui, R Van Berg, BA VanDevender, CJ Virtue, BL Wall, D Waller, HWC Tseung, DL Wark, J Wendland, N West, JF Wilkerson, JR Wilson, T Winchester, A Wright, M Yeh, F Zhang, K Zuber, SNO Collaboration


Multi-site event discrimination in large liquid scintillation detectors

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 943 (2019)

J Dunger, SD Biller

© 2019 Elsevier B.V. Simulation studies have been carried out to explore the ability to discriminate between single-site and multi-site energy depositions in large scale liquid scintillation detectors. A robust approach has been found that is predicted to lead to a significant statistical separation for a large variety of event classes, providing a powerful tool to discriminate against backgrounds and break important degeneracies in signal extraction. This has particularly relevant implications for liquid scintillator searches for neutrinoless double beta decay (0νββ) from 130Te and 136Xe, where it is possible for a true 0νββ signal to be distinguished from most radioactive backgrounds (including those from cosmogenic production) as well as unknown gamma lines from the target isotope.


Constraints on neutrino lifetime from the Sudbury Neutrino Observatory

PHYSICAL REVIEW D 99 (2019) ARTN 032013

B Aharmim, SN Ahmed, AE Anthony, N Barros, EW Beier, A Bellerive, B Beltran, M Bergevin, SD Biller, R Bonventre, K Boudjemline, MG Boulay, B Cai, EJ Callaghan, J Caravaca, YD Chan, D Chauhan, M Chen, BT Cleveland, GA Cox, X Dai, H Deng, FB Descamps, JA Detwiler, PJ Doe, G Doucas, P-L Drouin, M Dunford, SR Elliott, HC Evans, GT Ewan, J Farine, H Fergani, F Fleurot, RJ Ford, JA Formaggio, N Gagnon, K Gilje, JT 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, C Kefelian, KJ Keeter, JR Klein, LL Kormos, M Kos, A Kruger, C Kraus, CB Krauss, T Kutter, CCM Kyba, BJ Land, R Lange, J Law, IT Lawson, KT Lesko, JR Leslie, I Levine, JC Loach, R MacLellan, S Majerus, HB Mak, J Maneira, RD Martin, A Mastbaum, N McCauley, AB McDonald, SR Mcgee, ML Miller, B Monreal, J Monroe, BG Nickel, AJ Noble, HM O'Keeffe, NS Oblath, CE Okada, 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, D Sinclair, P Skensved, TJ Sonley, LC Stonehill, G Tesic, N Tolich, T Tsui, R Van Berg, BA VanDevender, CJ Virtue, BL Wall, D Waller, HWC Tseung, DL Wark, J Wendland, N West, JF Wilkerson, JR Wilson, T Winchester, A Wright, M Yeh, F Zhang, K Zuber, SNO Collaboration


Search for invisible modes of nucleon decay in water with the SNO plus detector

PHYSICAL REVIEW D 99 (2019) ARTN 032008

M Anderson, S Andringa, E Arushanova, S Asahi, M Askins, DJ Auty, AR Back, Z Barnard, N Barros, D Bartlett, F Barao, R Bayes, EW Beier, A Bialek, SD Biller, E Blucher, R Bonventre, M Boulay, D Braid, E Caden, EJ Callaghan, J Caravaca, J Carvalho, L Cavalli, D Chauhan, M Chen, O Chkvorets, KJ Clark, B Cleveland, C Connors, IT Coulter, D Cressy, X Dai, C Darrach, B Davis-Purcell, MM Depatie, F Descamps, F Di Lodovico, N Duhaime, F Duncan, J Dunger, E Falk, N Fatemighomi, V Fischer, E Fletcher, R Ford, N Gagnon, K Gilje, P Gorel, K Graham, C Grant, J Grove, S Grullon, E Guillian, AL Hallin, D Hallman, S Hans, J Hartnell, P Harvey, M Hedayatipour, WJ Heintzelman, J Heise, RL Helmer, JL Hernandez-Hernandez, B Hreljac, J Hu, T Iida, AS Inacio, CM Jackson, NA Jelley, C Jillings, C Jones, PG Jones, K Kamdin, T Kaptanaglu, J Kaspar, K Keeter, C Kefelian, P Khaghani, L Kippenbrock, JR Klein, R Knapik, J Kofron, LL Kormos, B Krar, C Kraus, CB Krauss, T Kroupova, K Labe, I Lam, C Lan, BJ Land, R Lane, S Langrock, A LaTorre, I Lawson, L Lebanowski, GM Lefeuvre, EJ Leming, A Li, J Lidgard, B Liggins, X Liu, Y Liu, V Lozza, M Luo, S Maguire, A Maio, K Majumdar, S Manecki, J Maneira, RD Martin, E Marzec, A Mastbaum, N McCauley, AB McDonald, JE McMillan, P Mekarski, M Meyer, C Miller, M Mlejnek, E Mony, I Morton-Blake, MJ Mottram, S Nae, M Nirkko, V Novikov, HM O'Keeffe, E O'Sullivan, GDO Gann, MJ Parnell, J Paton, SJM Peeters, T Pershing, Z Petriw, L Pickard, D Pracsovics, G Prior, J Rumleskie, MA Schumaker, MH Schwendener, D Scislowski, J Secrest, M Seddighin, L Segui, S Seibert, I Semenec, T Shantz, TM Shokair, L Sibley, JR Sinclair, K Singh, P Skensved, T Sonley, R Stainforth, M Strait, MI Stringer, R Svoboda, A Soerensen, B Tam, J Tatar, L Tian, N Tolich, J Tseng, HWC Tseung, E Turner, R Van Berg, JGC Veinot, CJ Virtue, B von Krosigk, E Vazquez-Jauregui, JMG Walker, M Walker, J Wang, O Wasalski, J Waterfield, JJ Weigand, RF White, JR Wilson, TJ Winchester, P Woosaree, A Wright, JP Yanez, M Yeh, T Zhao, K Zuber, A Zummo, SNO Collaboration


Measurement of the B-8 solar neutrino flux in SNO plus with very low backgrounds

PHYSICAL REVIEW D 99 (2019) ARTN 012012

M Anderson, S Andringa, S Asahi, M Askins, DJ Auty, N Barros, D Bartlett, F Barao, R Bayes, EW Beier, A Bialek, SD Biller, E Blucher, R Bonventre, M Boulay, E Caden, EJ Callaghan, J Caravaca, D Chauhan, M Chen, O Chkvorets, B Cleveland, C Connors, IT Coulter, MM Depatie, F Di Lodovico, F Duncan, J Dunger, E Falk, V Fischer, E Fletcher, R Ford, N Gagnon, K Gilje, C Grant, J Grove, AL Hallin, D Hallman, S Hans, J Hartnell, WJ Heintzelman, RL Helmer, JL Hernandez-Hernandez, B Hreljac, J Hu, AS Inacio, CJ Jillings, T Kaptanoglu, P Khaghani, JR Klein, R Knapik, LL Kormos, B Krar, C Kraus, CB Krauss, T Kroupova, I Lam, BJ Land, R Lane, A LaTorre, I Lawson, L Lebanowski, EJ Leming, A Li, J Lidgard, B Liggins, Y Liu, V Lozza, M Luo, S Maguire, A Maio, S Manecki, J Maneira, RD Martin, E Marzec, A Mastbaum, N McCauley, AB McDonald, P Mekarski, M Meyer, M Mlejnek, I Morton-Blake, S Nae, M Nirkko, HM O'Keeffe, GDO Gann, MJ Parnell, J Paton, SJM Peeters, T Pershing, L Pickard, D Pracsovics, G Prior, A Reichold, R Richardson, M Rigan, J Rose, R Rosero, J Rumleskie, I Semenec, K Singh, P Skensved, MI Stringer, R Svoboda, B Tam, L Tian, J Tseng, E Turner, R Van Berg, JGC Veinot, CJ Virtue, E Vazquez-Jauregui, J Wang, JJ Weigand, JR Wilson, P Woosaree, A Wright, JP Yanez, M Yeh, K Zuber, A Zummo, SNO Collaboration


Tests of Lorentz invariance at the Sudbury Neutrino Observatory

PHYSICAL REVIEW D 98 (2018) ARTN 112013

B Aharmim, SN Ahmed, AE Anthony, N Barros, EW Beier, A Bellerive, B Beltran, M Bergevin, SD Biller, E Blucher, R Bonventre, K Boudjemline, MG Boulay, B Cai, EJ Callaghan, J Caravaca, YD Chan, D Chauhan, M Chen, BT Cleveland, GA Cox, X Dai, H Deng, FB Descamps, JA Detwiler, PJ Doe, G Doucas, P-L Drouin, M Dunford, SR Elliott, HC Evans, GT Ewan, J Farine, H Fergani, F Fleurot, RJ Ford, JA Formaggio, N Gagnon, K Gilje, 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, C Kefelian, KJ Keeter, JR Klein, LL Kormos, M Kos, A Kruger, C Kraus, CB Krauss, T Kutter, CCM Kyba, K Labe, BJ Land, R Lange, A LaTorre, J Law, IT Lawson, KT Lesko, JR Leslie, I Levine, JC Loach, R MacLellan, S Majerus, HB Mak, J Maneira, RD Martin, A Mastbaum, N McCauley, AB McDonald, SR Mcgee, ML Miller, B Monreal, J Monroe, BG Nickel, AJ Noble, HM O'Keeffe, NS Oblath, CE Okada, RW Ollerhead, GD Orebi 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, D Sinclair, P Skensved, TJ Sonley, LC Stonehill, G Tesic, N Tolich, T Tsui, R Van Berg, BA VanDevender, CJ Virtue, BL Wall, D Waller, HWC Tseung, DL Wark, J Wendland, N West, JF Wilkerson, T Winchester, JR Wilson, A Wright, M Yeh, F Zhang, K Zuber, SNO Collaboration


A New Technique to Load Te-130 in Liquid Scintillator for Neutrinoless Double Beta Decay Experiments

XXVII INTERNATIONAL CONFERENCE ON NEUTRINO PHYSICS AND ASTROPHYSICS (NEUTRINO2016) 888 (2017)

S Biller, S Manecki, IOP, SNO Collaboration


Search for neutron-antineutron oscillations at the Sudbury Neutrino Observatory

PHYSICAL REVIEW D 96 (2017) ARTN 092005

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, 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, A Kruger, C Kraus, CB Krauss, 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, RD Martin, N McCauley, AB McDonald, SR McGee, ML Miller, B Monreal, J Monroe, BG Nickel, AJ Noble, HM O'Keeffe, NS Oblath, CE Okada, 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, R Van Berg, BA VanDevender, CJ Virtue, BL Wall, D Waller, HWC Tseung, DL Wark, J Wendland, N West, JF Wilkerson, JR Wilson, A Wright, M Yeh, F Zhang, K Zuber, SNO Collaboration


Current Status and Future Prospects of the SNO plus Experiment

ADVANCES IN HIGH ENERGY PHYSICS (2016) ARTN 6194250

S Andringa, E Arushanova, S Asahi, M Askins, DJ Auty, AR Back, Z Barnard, N Barros, EW Beier, A Bialek, SD Biller, E Blucher, R Bonventre, D Braid, E Caden, E Callaghan, J Caravaca, J Carvalho, L Cavalli, D Chauhan, M Chen, O Chkvorets, K Clark, B Cleveland, IT Coulter, D Cressy, X Dai, C Darrach, B Davis-Purcell, R Deen, MM Depatie, F Descamps, F Di Lodovico, N Duhaime, F Duncan, J Dunger, E Falk, N Fatemighomi, R Ford, P Gorel, C Grant, S Grullon, E Guillian, AL Hallin, D Hallman, S Hans, J Hartnell, P Harvey, M Hedayatipour, WJ Heintzelman, RL Helmer, B Hreljac, J Hu, Iida, CM Jackson, NA Jelley, C Jillings, C Jones, PG Jones, K Kamdin, T Kaptanoglu, J Kaspar, P Keener, P Khaghani, L Kippenbrock, JR Klein, R Knapik, JN Kofron, LL Kormos, S Korte, C Kraus, CB Krauss, K Labe, I Lam, C Lan, BJ Land, S Langrock, A LaTorre, I Lawson, GM Lefeuvre, EJ Leming, J Lidgard, X Liu, Y Liu, V Lozza, S Maguire, A Maio, K Majumdar, S Manecki, J Maneira, E Marzec, A Mastbaum, N McCauley, AB McDonald, JE McMillan, P Mekarski, C Miller, Y Mohan, E Mony, MJ Mottram, V Novikov, HM O'Keeffe, E O'Sullivan, GDO Gann, J Parnell, SJM Peeters, T Pershing, Z Petriw, G Prior, JC Prouty, S Quirk, A Reichold, A Robertson, J Rose, R Rosero, PM Rost, J Rumleskie, MA Schumaker, MH Schwendener, D Scislowski, J Secrest, M Seddighin, L Segui, S Seibert, T Shantz, TM Shokair, L Sibley, JR Sinclair, K Singh, P Skensved, A Soerensen, T Sonley, R Stainforth, M Strait, MI Stringer, R Svoboda, J Tatar, L Tian, N Tolich, J Tseng, HWC Tseung, R Van Berg, E Vzquez-Jauregui, C Virtue, B von Krosigk, JMG Walker, M Walker, O Wasalski, J Waterfield, RF White, JR Wilson, TJ Winchester, A Wright, M Yeh, T Zhao, K Zuber


SNO plus with Tellurium

13TH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS, TAUP 2013 61 (2015) 205-210

S Biller, SNO Collaboration


Purification of telluric acid for SNO plus neutrinoless double-beta decay search

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 795 (2015) 132-139

S Hans, R Rosero, L Hu, O Chkvorets, WT Chan, S Guan, W Beriguete, A Wright, R Ford, MC Chen, S Biller, M Yeh


Another look at confidence intervals: Proposal for a more relevant and transparent approach

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 774 (2015) 103-119

SD Biller, SM Oser


Probing Majorana neutrinos in the regime of the normal mass hierarchy

PHYSICAL REVIEW D 87 (2013) ARTN 071301

SD Biller


Combined Analysis of all Three Phases of Solar Neutrino Data from the Sudbury Neutrino Observatory

(2013)

SD Biller, SNO Collaboration


LOW-MULTIPLICITY BURST SEARCH AT THE SUDBURY NEUTRINO OBSERVATORY

ASTROPHYSICAL JOURNAL 728 (2011) ARTN 83

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, X Dai, H Deng, J Detwiler, 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, B Jamieson, NA Jelley, M Jerkins, JR Klein, M Kos, C Kraus, CB Krauss, T Kutter, CCM Kyba, J Law, KT Lesko, JR Leslie, JC Loach, R MacLellan, S Majerus, HB Mak, J Maneira, R Martin, N McCauley, AB McDonald, ML Miller, B Monreal, J Monroe, BG Nickel, AJ Noble, HM O'Keeffe, NS Oblath, 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, R Van Berg, BA VanDevender, CJ Virtue, HWC Tseung, PJS Watson, N West, JF Wilkerson, JR Wilson, A Wright, M Yeh, F Zhang, K Zuber, SNO Collaboration


Low-multiplicity burst search at the Sudbury neutrino Observatory

Astrophysical Journal Letters 728 (2011)

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

Results are reported from a search for low-multiplicity neutrino bursts in the Sudbury Neutrino Observatory. Such bursts could indicate the detection of a nearby core-collapse supernova explosion. The data were taken from Phase I (1999 November-2001 May), when the detector was filled with heavy water, and Phase II (2001 July-2003 August), when NaCl was added to the target. The search was a blind analysis in which the potential backgrounds were estimated and analysis cuts were developed to eliminate such backgrounds with 90% confidence before the data were examined. The search maintained a greater than 50% detection probability for standard supernovae occurring at a distance of up to 60 kpc for Phase I and up to 70 kpc for Phase II. No low-multiplicity bursts were observed during the data-taking period. © 2011. The American Astronomical Society. All rights reserved. Printedin the U.S.A.


Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory

Physical Review C - Nuclear Physics 81 (2010)

B Aharmim, SN Ahmed, AE Anthony, N Barros, EW Beier, A Bellerive, B Beltran, M Bergevin, SD Biller, K Boudjemline, MG Boulay, TH Burritt, B Cai, YD Chan, D Chauhan, M Chen, BT Cleveland, GA Cox, X Dai, H Deng, J Detwiler, M Dimarco, PJ Doe, G Doucas, PL Drouin, CA Duba, FA Duncan, M Dunford, ED Earle, SR Elliott, HC Evans, GT Ewan, J Farine, H Fergani, F Fleurot, RJ Ford, JA Formaggio, N Gagnon, JT 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, MA Howe, M Huang, B Jamieson, NA Jelley, KJ Keeter, JR Klein, LL Kormos, M Kos, C Kraus, CB Krauss, T Kutter, CCM Kyba, 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, S McGee, ML Miller, B Monreal, J Monroe, B Morissette, BG Nickel, AJ Noble, HM O'Keeffe, NS Oblath, GD Orebi 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

Results are reported from a joint analysis of Phase I and Phase II data from the Sudbury Neutrino Observatory. The effective electron kinetic energy threshold used is Teff=3.5 MeV, the lowest analysis threshold yet achieved with water Cherenkov detector data. In units of 106 cm-2 s-1, the total flux of active-flavor neutrinos from B8 decay in the Sun measured using the neutral current (NC) reaction of neutrinos on deuterons, with no constraint on the B8 neutrino energy spectrum, is found to be ΦNC=5.140-0.158+0.160(stat)-0.117+0.132(syst). These uncertainties are more than a factor of 2 smaller than previously published results. Also presented are the spectra of recoil electrons from the charged current reaction of neutrinos on deuterons and the elastic scattering of electrons. A fit to the Sudbury Neutrino Observatory data in which the free parameters directly describe the total B8 neutrino flux and the energy-dependent νe survival probability provides a measure of the total B8 neutrino flux Φ8B=5.046-0.152+0.159(stat) -0.123+0.107(syst). Combining these new results with results of all other solar experiments and the KamLAND reactor experiment yields best-fit values of the mixing parameters of θ12=34.06-0.84+1.16 degrees and Δm212=7.59-0. 21+0.20×10-5 eV2. The global value of Φ8B is extracted to a precision of -2.95+2.38%. In a three-flavor analysis the best fit value of sin2θ13 is 2.00-1.63+2.09×10-2. This implies an upper bound of sin2θ13<0.057 (95% C.L.). © 2010 The American Physical Society.


Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory

PHYSICAL REVIEW C 81 (2010) ARTN 055504

B Aharmim, SN Ahmed, AE Anthony, N Barros, EW Beier, A Bellerive, B Beltran, M Bergevin, SD Biller, K Boudjemline, MG Boulay, TH Burritt, B Cai, YD Chan, D Chauhan, M Chen, BT Cleveland, GA Cox, X Dai, H Deng, J Detwiler, M DiMarco, PJ Doe, G Doucas, P-L Drouin, CA Duba, FA Duncan, M Dunford, ED Earle, SR Elliott, HC Evans, GT Ewan, J Farine, H Fergani, F Fleurot, RJ Ford, JA Formaggio, N Gagnon, JT 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, MA Howe, M Huang, B Jamieson, NA Jelley, KJ Keeter, JR Klein, LL Kormos, M Kos, C Kraus, CB Krauss, T Kutter, CCM Kyba, 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, S McGee, ML Miller, B Monreal, J Monroe, B Morissette, BG Nickel, AJ Noble, HM O'Keeffe, NS Oblath, 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, D Sinclair, P Skensved, TJ Sonley, LC Stonehill, G Tesic, N Tolich, T Tsui, CD Tunnell, R Van Berg, BA VanDevender, CJ Virtue, BL Wall, D Waller, HWC Tseung, DL Wark, N West, JF Wilkerson, JR Wilson, JM Wouters, A Wright, M Yeh, F Zhang, K Zuber, SNO Collaboration


SEARCHES FOR HIGH-FREQUENCY VARIATIONS IN THE B-8 SOLAR NEUTRINO FLUX AT THE SUDBURY NEUTRINO OBSERVATORY

ASTROPHYSICAL JOURNAL 710 (2010) 540-548

B Aharmim, SN Ahmed, AE Anthony, N Barros, EW Beier, A Bellerive, B Beltran, M Bergevin, SD Biller, K Boudjemline, MG Boulay, TH Burritt, B Cai, YD Chan, D Chauhan, M Chen, BT Cleveland, GA Cox, X Dai, H Deng, J Detwiler, M DiMarco, PJ Doe, G Doucas, P-L Drouin, CA Duba, 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, MA Howe, M Huang, B Jamieson, NA Jelley, KJ Keeter, JR Klein, LL Kormos, M Kos, C Kraus, CB Krauss, T Kutter, CCM Kyba, 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, S McGee, ML Miller, B Monreal, J Monroe, B Morissette, BG Nickel, AJ Noble, HM O'Keeffe, NS Oblath, 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, D Sinclair, P Skensved, TJ Sonley, LC Stonehill, G Tesic, N Tolich, T Tsui, CD Tunnell, R Van Berg, BA VanDevender, CJ Virtue, BL Wall, D Waller, HWC Tseung, DL Wark, PJS Watson, N West, JF Wilkerson, JR Wilson, JM Wouters, A Wright, M Yeh, F Zhang, K Zuber


Searches for high-frequency variations in the <sup>8</sup>B solar neutrino flux at the sudbury neutrino observatory

Astrophysical Journal 710 (2010) 540-548

B Aharmim, SN Ahmed, AE Anthony, N Barros, EW Beier, A Bellerive, B Beltran, M Bergevin, SD Biller, K Boudjemline, MG Boulay, TH Burritt, B Cai, YD Chan, D Chauhan, M Chen, BT Cleveland, GA Cox, X Dai, H Deng, J Detwiler, M Dimarco, PJ Doe, G Doucas, PL Drouin, CA Duba, FA Duncan, M Dunford, ED Earle, SR Elliott, HC Evans, GT Ewan, J Farine, H Fergani, F Fleurot, RJ Ford, JA Formaggio, N Gagnon, JT 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, MA Howe, M Huang, B Jamieson, NA Jelley, KJ Keeter, JR Klein, LL Kormos, M Kos, C Kraus, CB Krauss, T Kutter, CCM Kyba, 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, S McGee, ML Miller, B Monreal, J Monroe, B Morissette, BG Nickel, AJ Noble, HM O'Keeffe, NS Oblath, 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

We have performed three searches for high-frequency signals in the solar neutrino flux measured by the Sudbury Neutrino Observatory, motivated by the possibility that solar g-mode oscillations could affect the production or propagation of solar 8B neutrinos. The first search looked for any significant peak in the frequency range 1-144day-1, with a sensitivity to sinusoidal signals with amplitudes of 12% or greater. The second search focused on regions in which g-mode signals have been claimed by experiments aboard the Solar and Heliospheric Observatory satellite, and was sensitive to signals with amplitudes of 10% or greater. The third search looked for extra power across the entire frequency band. No statistically significant signal was detected in any of the three searches. © 2010. The American Astronomical Society.

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