Constraints on nucleon decay via invisible modes from the Sudbury Neutrino Observatory

被引：28

作者：

Ahmed, SN ^{[1
]}

Anthony, AE

Beier, EW

Bellerive, A

Biller, SD

Boger, J

Boulay, MG

Bowler, MG

Bowles, TJ

Brice, SJ

Bullard, TV

Chan, YD

Chen, M

Chen, X

Cleveland, BT

Cox, GA

Dai, X

Dalnoki-Veress, F

Doe, PJ

Dosanjh, RS

Doucas, G

Dragowsky, MR

Duba, CA

Duncan, FA

Dunford, M

Dunmore, JA

Earle, ED

Elliott, SR

Evans, HC

Ewan, GT

Farine, J

Fergani, H

Fleurot, F

Formaggio, JA

Fowler, MM

Frame, K

Frati, W

Fulsom, BG

Gagnon, N

Graham, K

Grant, DR

Hahn, RL

Hall, JC

Hallin, AL

Hallman, ED

Hamer, AS

Handler, WB

Hargrove, CK

Harvey, PJ

Hazama, R

机构：

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

[2] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[3] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

[4] Carleton Univ, Dept Phys, Ottawa Carleton Inst Phys, Ottawa, ON K1S 5B6, Canada

[5] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada

[6] Laurentian Univ, Dept Phys & Astron, Sudbury, ON P3E 2C6, Canada

[7] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA

[8] Univ Calif Berkeley, Lawrence Berkeley Lab, Inst Nucl & Particle Astrophys, Berkeley, CA 94720 USA

[9] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[10] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[11] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[12] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[13] Univ Texas, Dept Phys, Austin, TX 78712 USA

[14] TRIUMF, Vancouver, BC V6T 2A3, Canada

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

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

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 10期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.92.102004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Data from the Sudbury Neutrino Observatory have been used to constrain the lifetime for nucleon decay to "invisible" modes, such as n-->3nu. The analysis was based on a search for gamma rays from the deexcitation of the residual nucleus that would result from the disappearance of either a proton or neutron from O-16. A limit of tau(inv)>2x10(29) yr is obtained at 90% confidence for either neutron- or proton-decay modes. This is about an order of magnitude more stringent than previous constraints on invisible proton-decay modes and 400 times more stringent than similar neutron modes.

引用

页码：102004 / 1

页数：4

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