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

TitleMeasurement of the cosmic ray and neutrino-induced muon flux at the Sudbury neutrino observatory
Authors
Issue Date2009
PublisherAmerican Physical Society. The Journal's web site is located at http://prd.aps.org
Citation
Physical Review D - Particles, Fields, Gravitation and Cosmology, 2009, v. 80 n. 1 How to Cite?
AbstractResults 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 θzenith≤0.4 in a total exposure of 2.30×1014cm2s. 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 θzenith>0.4 is measured to be (3.31±0.01(stat)±0.09(sys))×10-10μ/s/cm2. © 2009 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/91381
ISSN
2014 Impact Factor: 4.643
2015 SCImago Journal Rankings: 1.882
ISI Accession Number ID
Funding AgencyGrant Number
Canada: Natural Sciences and Engineering Research Council
Industry Canada
National Research Council
Northern Ontario Heritage Fund
Atomic Energy of Canada, Ltd.
Ontario Power Generation, High Performance Computing Virtual Laboratory
Canada Foundation for Innovation
US: Department of Energy
National Energy Research Scientific Computing Center; UK
Science and Technology Facilities Council; Portugal
Fundacao para a Ciencia e a Tecnologia
Funding Information:

This research was supported by: Canada: Natural Sciences and Engineering Research Council, Industry Canada, National Research Council, Northern Ontario Heritage Fund, Atomic Energy of Canada, Ltd., Ontario Power Generation, High Performance Computing Virtual Laboratory, Canada Foundation for Innovation; US: Department of Energy, National Energy Research Scientific Computing Center; UK: Science and Technology Facilities Council; Portugal: Fundacao para a Ciencia e a Tecnologia. We thank the SNO technical staff for their strong contributions. We thank Vale Inco for hosting this project.

References

 

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dc.contributor.authorAhmed, SNen_HK
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dc.date.accessioned2010-09-17T10:18:21Z-
dc.date.available2010-09-17T10:18:21Z-
dc.date.issued2009en_HK
dc.identifier.citationPhysical Review D - Particles, Fields, Gravitation and Cosmology, 2009, v. 80 n. 1en_HK
dc.identifier.issn1550-7998en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91381-
dc.description.abstractResults 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 θzenith≤0.4 in a total exposure of 2.30×1014cm2s. 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 θzenith>0.4 is measured to be (3.31±0.01(stat)±0.09(sys))×10-10μ/s/cm2. © 2009 The American Physical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prd.aps.orgen_HK
dc.relation.ispartofPhysical Review D - Particles, Fields, Gravitation and Cosmologyen_HK
dc.titleMeasurement of the cosmic ray and neutrino-induced muon flux at the Sudbury neutrino observatoryen_HK
dc.typeArticleen_HK
dc.identifier.emailChen, MZ:mzqchen@hku.hken_HK
dc.identifier.authorityChen, MZ=rp1317en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevD.80.012001en_HK
dc.identifier.scopuseid_2-s2.0-69549138371en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-69549138371&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume80en_HK
dc.identifier.issue1en_HK
dc.identifier.eissn1550-2368-
dc.identifier.isiWOS:000268618600003-

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