Measurement of the cosmic ray and neutrino-induced muon flux at the Sudbury neutrino observatory

被引：44

作者：

Aharmim, B. ^{[1
]}

Ahmed, S. N. ^{[15
]}

Andersen, T. C. ^{[6
]}

Anthony, A. E. ^{[18
]}

Barros, N. ^{[9
]}

Beier, E. W. ^{[14
]}

Bellerive, A. ^{[5
]}

Beltran, B. ^{[2
,15
]}

Bergevin, M. ^{[6
,7
,8
]}

Biller, S. D. ^{[13
]}

Boudjemline, K. ^{[5
]}

Boulay, M. G. ^{[10
,15
]}

Burritt, T. H. ^{[20
,21
]}

Cai, B. ^{[15
]}

Chan, Y. D. ^{[7
,8
]}

Chen, M. ^{[15
]}

Chon, M. C. ^{[6
]}

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

Cox-Mobrand, G. A. ^{[20
,21
]}

Currat, C. A. ^{[7
]}

Dai, X. ^{[5
,13
,15
]}

Dalnoki-Veress, F. ^{[5
]}

Deng, H. ^{[14
]}

Detwiler, J. ^{[7
,8
,20
,21
]}

Doe, P. J. ^{[20
,21
]}

Dosanjh, R. S. ^{[5
]}

Doucas, G. ^{[13
]}

Drouin, P. -L. ^{[5
]}

Duncan, F. A. ^{[15
,17
]}

Dunford, M. ^{[14
]}

Elliott, S. R. ^{[10
,20
,21
]}

Evans, H. C. ^{[15
]}

Ewan, G. T. ^{[15
]}

Farine, J. ^{[1
]}

Fergani, H. ^{[13
]}

Fleurot, F. ^{[1
]}

Ford, R. J. ^{[15
,17
]}

Formaggio, J. A. ^{[12
,20
,21
]}

Gagnon, N. ^{[7
,8
,10
,13
,20
,21
]}

Goon, J. T. M. ^{[11
]}

Graham, K. ^{[5
]}

Grant, D. R. ^{[5
]}

Guillian, E. ^{[15
]}

Habib, S. ^{[2
,15
]}

Hahn, R. L. ^{[4
]}

Hallin, A. L. ^{[2
,15
]}

Hallman, E. D. ^{[1
]}

Hargrove, C. K. ^{[5
]}

Harvey, P. J. ^{[15
]}

Hazama, R. ^{[20
,21
]}

机构：

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

[2] Univ Alberta, Dept Phys, Edmonton, AB T6G 2R3, Canada

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

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

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

[6] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, 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] Lab Instrumentacao & Fis Expt Particulas, P-1000149 Lisbon, Portugal

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

[11] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

[12] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA

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

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

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

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

[17] SNOLAB, Sudbury, ON P3Y 1M3, Canada

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

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

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

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

[22] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England

来源：

PHYSICAL REVIEW D | 2009年 / 80卷 / 01期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会; 英国科学技术设施理事会;

关键词：

CURRENT CROSS-SECTION; PROPAGATION;

D O I：

10.1103/PhysRevD.80.012001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Results are reported on the measurement of the atmospheric neutrino-induced muon flux at a depth of 2 kilometers below the Earth's surface from 1229 days of operation of the Sudbury Neutrino Observatory (SNO). By measuring the flux of through-going muons as a function of zenith angle, the SNO experiment can distinguish between the oscillated and unoscillated portion of the neutrino flux. A total of 514 muonlike events are measured between -1 < cos theta(zenith)< 0.4 in a total exposure of 2.30x10(14) cm(2) s. The measured flux normalization is 1.22 +/- 0.09 times the Bartol three-dimensional flux prediction. This is the first measurement of the neutrino-induced flux where neutrino oscillations are minimized. The zenith distribution is consistent with previously measured atmospheric neutrino oscillation parameters. The cosmic ray muon flux at SNO with zenith angle cos theta(zenith)> 0.4 is measured to be (3.31 +/- 0.01(stat)+/- 0.09(sys))x10(-10) mu/s/cm(2).

引用

页数：15

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