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Title: Neutral-current neutrino cross section and expected supernova signals for 40Ar from a three-fold increase in the magnetic dipole strength

Journal Article · · Physics Letters. B
 [1];  [2]; ORCiD logo [1];  [1];  [3];  [4]; ORCiD logo [5];  [6]
  1. Duke University, Durham, NC (United States). Triangle Universities Nuclear Laboratory
  2. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Duke University, Durham, NC (United States)
  3. Huzhou University, Zhejiang (China)
  4. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  5. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Kubrick Group, London (United Kingdom)
  6. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Massachusetts Institute of Technology (MIT), Cambridge, MA (United States)

In view of the great interest in liquid argon neutrino detectors, the 40Ar(γ,γ')40Ar reaction was revisited to guide a calculation of the neutral current neutrino cross section at supernova energies. Using the nuclear resonance fluorescence technique with a monoenergetic, 99% linearly polarized photon beam, in this work we report a three-fold increase in magnetic dipole strength at around 10 MeV in 40Ar. Based on shell-model calculations, and using the experimentally identified transitions, the neutral current neutrino cross sections for low-energy reactions on 40Ar are calculated.

Research Organization:
Duke Univ., Durham, NC (United States). Triangle Universities Nuclear Laboratory; Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC). Office of Nuclear Physics (NP); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
89233218CNA000001; FG02-97ER41033; AC52-07NA27344; 12275081; U2067205; U1732138
OSTI ID:
1907442
Alternate ID(s):
OSTI ID: 1900498; OSTI ID: 2203623
Report Number(s):
LA-UR-22-25650; LLNL-JRNL-854512; TRN: US2311893
Journal Information:
Physics Letters. B, Vol. 835; ISSN 0370-2693
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Research opportunities at the upgraded HIγS facility journal January 2009
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journal September 2014
Parity Measurements of Nuclear Levels Using a Free-Electron-Laser Generated γ -Ray Beam journal December 2001

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