期刊
PHYSICAL REVIEW D
卷 100, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.100.115020
关键词
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资金
- Alfred P. Sloan Foundation
- Consortium for Nonproliferation Enabling Capabilities
- Institute for Basic Science (Korea) [IBS-R017-G1-2019-a00]
- National Science Foundation
- Russian Foundation for Basic Research [17-02-01077 A]
- U.S. Department of Energy, Office of Science
- Laboratory Directed Research and Development funds from ORNL
- Lawrence Livermore National Laboratory
- U.S. Department of Energy (DOE) [DE-AC05-00OR22725]
Coherent elastic neutrino-nucleus scattering (CEvNS) is calculated to be the dominant neutrino scattering channel for neutrinos of energy E-nu < 100 MeV. We report a limit for this process from data collected in an engineering run of the 29 kg CENNS-10 liquid argon detector located 27.5 m from the pion decay-at-rest neutrino source at the Oak Ridge National Laboratory Spallation Neutron Source (SNS) with 4.2 x 10(22) protons on target. The dataset provided constraints on beam-related backgrounds critical for future measurements and yielded < 7.4 candidate CEvNS events which implies a cross section for the process, averaged over the SNS pion decay-at-rest flux, of < 3.4 x 10(-39) cm(2), a limit within twice the Standard Model prediction. This is the first limit on CEvNS from an argon nucleus and confirms the earlier CsI[Na] nonstandard neutrino interaction constraints from the collaboration. This run demonstrated the feasibility of the ongoing experimental effort to detect CEvNS with liquid argon.
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