First observation of isolated nuclear recoils following neutron capture for dark matter calibration
First observation of isolated nuclear recoils following neutron capture for dark matter calibration
复制标题
首次观察中子俘获后的孤立核反冲以进行暗物质校准
DOI:
10.1103/physrevd.105.083014
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发表时间:
2022
影响因子:
5
通讯作者:
Mandic, V.
中科院分区:
文献类型:
--
作者:
Villano, A. N.;Fritts, M.;Mast, N.;Brown, S.;Cushman, P.;Harris, K.;Mandic, V.
Low-energy nuclear recoils (NRs) are hard to measure, because they produce fewpairs in solids—i.e., they have low “ionization yield.” A silicon detector was exposed to thermal neutrons over 2.5 live days, probing NRs down to 450 eV. The observation of a neutron capture-induced component of NRs at low energies is supported by the much-improved fit upon inclusion of a capture NR model. This result shows that thermal neutron calibration of very low recoil energy NRs is promising for dark matter searches, coherent neutrino experiments, and improving understanding of ionization dynamics in solids.
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DOI:
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发表时间:
2020
期刊:
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DOI:
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2021
期刊:
Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment
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