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Title: Testing the gallium anomaly

Journal Article · · Physical Review. D.
ORCiD logo [1]
  1. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
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We study the online detection of gallium capture of monoenergetic neutrinos produced by a 51Cr radioactive source in a scintillation experiment. We find that cerium-doped gadolinium aluminum gallium garnet (Ce:GAGG) is a suitable scintillator which contains about 21% of gallium per weight and has a high mass density and light yield. Combined with a highly efficient light detection system this allows tagging of the subsequent germanium decay and thus a clean distinction of gallium capture and elastic neutrino electron scattering events. With 1.5 tons of scintillator and 10 source runs of 3.4 MCi, each, we obtain about 1700 gallium capture events with a purity of 90% and 680,000 neutrino electron scattering events, where the latter provide a precise normalization independent of any nuclear physics. We include a detailed discussion of backgrounds and find that this configuration would allow us to test the gallium anomaly at more than 5⁢σ in an independent way.

Research Organization:
Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); USDOE
Grant/Contract Number:
SC0018327; SC00018327; CEX2020-001007-S
OSTI ID:
1973724
Alternate ID(s):
OSTI ID: 2417784
Journal Information:
Physical Review. D., Vol. 107, Issue 9; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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