Measurement of the total active 8B solar neutrino flux at the sudbury neutrino observatory with enhanced neutral current sensitivity -: art. no. 181301

被引：574

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

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

Heeger, KM

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, Inst Nucl & Particle Astrophys, Berkeley, CA 94720 USA

[8] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, 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 Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England

[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

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

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 18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.92.181301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Sudbury Neutrino Observatory has precisely determined the total active (nu(x)) B-8 solar neutrino flux without assumptions about the energy dependence of the nu(e) survival probability. The measurements were made with dissolved NaCl in heavy water to enhance the sensitivity and signature for neutral-current interactions. The flux is found to be 5.21+/-0.27(stat)+/-0.38(syst)x10(6) cm(-2) s(-1), in agreement with previous measurements and standard solar models. A global analysis of these and other solar and reactor neutrino results yields Deltam(2)=7.1(-0.6)(+1.2)x10(-5) eV(2) and theta= 32.5(-2.3)(+2.4) degrees. Maximal mixing is rejected at the equivalent of 5.4 standard deviations.

引用

页码：181301 / 1

页数：6

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