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Title: Cosmogenic neutron production at Daya Bay

Journal Article · · Physical Review D
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Neutrons produced by cosmic ray muons are an important background for underground experiments studying neutrino oscillations, neutrinoless double beta decay, dark matter, and other rare-event signals. A measurement of the neutron yield in the three different experimental halls of the Daya Bay Reactor Neutrino Experiment at varying depth is reported. The neutron yield in Daya Bay’s liquid scintillator is measured to be Yn = (10.26 ± 0.86) x 10-5, (10.22 ± 0.87) x 10-5, and (17.03 ± 1.22) x 10-5 μ-1g-1cm2 at depths of 250, 265, and 860 meters-water-equivalent. These results are compared to other measurements and the simulated neutron yield in Fluka and Geant4. A global fit including the Daya Bay measurements yields a power law coefficient of 0.77 ± 0.03 for the dependence of the neutron yield on muon energy.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
The Daya Bay Collaboration
Grant/Contract Number:
SC0012704; AC02-05CH11231
OSTI ID:
1429565
Alternate ID(s):
OSTI ID: 1430844; OSTI ID: 1435127
Report Number(s):
BNL-203429-2018-JAAM; PRVDAQ; 052009
Journal Information:
Physical Review D, Journal Name: Physical Review D Vol. 97 Journal Issue: 5; ISSN 2470-0010
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Cited By (3)

Cosmogenic Neutron Production At Daya Bay text January 2018
Cosmogenic Neutron Production At Daya Bay text January 2018
Cosmogenic neutron production at the Sudbury Neutrino Observatory journal December 2019

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