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

被引：21

作者：

Anderson, M. ^{[1
]}

Andringa, S. ^{[2
]}

Arushanova, E. ^{[3
]}

Asahi, S. ^{[1
]}

Askins, M. ^{[4
,5
,6
]}

Auty, D. J. ^{[7
]}

Back, A. R. ^{[3
,8
]}

Barnard, Z. ^{[9
]}

Barros, N. ^{[2
,10
,11
]}

Bartlett, D. ^{[1
]}

Barao, F. ^{[2
,12
]}

Bayes, R. ^{[9
]}

Beier, E. W. ^{[10
]}

Bialek, A. ^{[7
,13
]}

Biller, S. D. ^{[14
]}

Blucher, E. ^{[15
,16
]}

Bonventre, R. ^{[4
,5
,10
]}

Boulay, M. ^{[1
]}

Braid, D. ^{[9
]}

Caden, E. ^{[9
,13
]}

Callaghan, E. J. ^{[4
,5
]}

Caravaca, J. ^{[4
,5
]}

Carvalho, J. ^{[17
,18
]}

Cavalli, L. ^{[14
]}

Chauhan, D. ^{[1
,2
,9
,13
]}

Chen, M. ^{[1
]}

Chkvorets, O. ^{[9
]}

Clark, K. J. ^{[1
,8
,14
]}

Cleveland, B. ^{[9
,13
]}

Connors, C. ^{[9
]}

Coulter, I. T. ^{[10
,14
]}

Cressy, D. ^{[9
]}

Dai, X. ^{[1
]}

Darrach, C. ^{[9
]}

Davis-Purcell, B. ^{[19
]}

Depatie, M. M. ^{[9
]}

Descamps, F. ^{[4
,5
]}

Di Lodovico, F. ^{[3
]}

Duhaime, N. ^{[9
]}

Duncan, F. ^{[13
]}

Dunger, J. ^{[14
]}

Falk, E. ^{[8
]}

Fatemighomi, N. ^{[1
]}

Fischer, V ^{[6
]}

Fletcher, E. ^{[1
]}

Ford, R. ^{[9
,13
]}

Gagnon, N. ^{[13
]}

Gilje, K. ^{[7
]}

Gorel, P. ^{[7
]}

Graham, K. ^{[1
]}

机构：

[1] Queens Univ, Dept Phys Engn Phys & Astron, Kingston, ON K7L 3N6, Canada

[2] Lab Instrumentacao & Fis Expt Particulas LIP, Av Prof Gama Pinto 2, P-1649003 Lisbon, Portugal

[3] Queen Mary Univ London, Sch Phys & Astron, 327 Mile End Rd, London E1 4NS, England

[4] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[5] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA

[6] Univ Calif Davis, 1 Shields Ave, Davis, CA 95616 USA

[7] Univ Alberta, Dept Phys, 4-181 CCIS, Edmonton, AB T6G 2E1, Canada

[8] Univ Sussex, Phys & Astron, Pevensey 2, Brighton BN1 9QH, E Sussex, England

[9] Laurentian Univ, Dept Phys, 935 Ramsey Lake Rd, Sudbury, ON P3E 2C6, Canada

[10] Univ Penn, Dept Phys & Astron, 209 South 33rd St, Philadelphia, PA 19104 USA

[11] Tech Univ Dresden, Inst Kern & Teilchenphys, Zellescher Weg 19, D-01069 Dresden, Germany

[12] Univ Lisbon, Inst Super Tecn, Av Rovisco Pais, P-1049001 Lisbon, Portugal

[13] SNOLAB, Creighton Mine 9,1039 Reg Rd 24, Sudbury, ON P3Y 1N2, Canada

[14] Univ Oxford, Denys Wilkinson Bldg,Keble Rd, Oxford OX1 3RH, England

[15] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[16] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[17] Univ Coimbra, Dept Fis, P-3004516 Coimbra, Portugal

[18] Univ Coimbra, Lab Instrumentacao & Fis Expt Particulas LIP, P-3004516 Coimbra, Portugal

[19] TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada

[20] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA

[21] Brookhaven Natl Lab, Chem Dept, Bldg 555,POB 5000, Upton, NY 11973 USA

[22] Univ Nacl Autonoma Mexico, Inst Fis, Apartado Postal 20-364, Mexico City 01000, DF, Mexico

[23] Univ Lisbon, Fac Ciencias FCUL, Dept Fis, Campo Grande,Ediffcio C8, P-1749016 Lisbon, Portugal

[24] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA

[25] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[26] Idaho State Univ, 921 S 8th Ave,Mail Stop 8106, Pocatello, ID 83209 USA

[27] Norwich Univ, 158 Harmon Dr, Northfield, MN 05663 USA

[28] Univ Lancaster, Phys Dept, Lancaster LA1 4YB, England

[29] Boston Univ, Dept Phys, 590 Corrunonwealth Ave, Boston, MA 02215 USA

[30] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England

[31] Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England

[32] Armstrong Atlantic State Univ, 11935 Abercorn St, Savannah, GA 31419 USA

[33] Univ Alberta, Dept Chem, 11227 Saskatchewan Dr, Edmonton, AB T6G 2G2, Canada

[34] Tech Univ Dresden, Fac Chem & Food Chem, D-01062 Dresden, Germany

[35] MTA Atomki, H-4001 Debrecen, Hungary

来源：

PHYSICAL REVIEW D | 2019年 / 99卷 / 03期

基金：

加拿大创新基金会; 欧洲研究理事会; 加拿大自然科学与工程研究理事会; 美国国家科学基金会; 英国科学技术设施理事会;

关键词：

NEUTRINO; LIMITS;

D O I：

10.1103/PhysRevD.99.032008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This paper reports results from a search for nucleon decay through invisible modes, where no visible energy is directly deposited during the decay itself, during the initial water phase of SNO+. However, such decays within the oxygen nucleus would produce an excited daughter that would subsequently deexcite, often emitting detectable gamma rays. A search for such gamma rays yields limits of 2.5 x 10(29) y at 90% Bayesian credibility level (with a prior uniform in rate) for the partial lifetime of the neutron, and 3.6 x 10(29) y for the partial lifetime of the proton, the latter a 70% improvement on the previous limit from SNO. We also present partial lifetime limits for invisible dinucleon modes of 1.3 x 10(28) y for nn, 2.6 x 10(28) y for pn and 4.7 x 10(28) y for pp, an improvement over existing limits by close to 3 orders of magnitude for the latter two.

引用

页数：13

共 50 条

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