Production and decay of the (73)Ge*(1/2(-)) metastable state in a low-background germanium detector
TEXONO Collaboration
刊名JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
2008
卷号35期号:7
关键词NEUTRAL-CURRENT DARK-MATTER EXCITATION SCATTERING NEUTRINOS DEUTERONS REACTOR FUTURE PROTON
学科分类Physics
DOI10.1088/0954-3899/35/7/077001
通讯作者Liao, HY (reprint author), Acad Sinica, Inst Phys, Taipei 115, Taiwan.
英文摘要The (73)Ge*(1/2(-)) metastable state decays with a very characteristic signature which allows it to be tagged event-by-event. Studies were performed using data taken with a high-purity germanium detector in a low-background laboratory near a nuclear power reactor core where the (nu) over bar (e) flux was 6.4 x 10(12) cm(-2) s(-1). The measured average and equilibrium production rates of (73)Ge*(1/2-) were (8.7 +/- 0.4) and (6.7 +/- 0.3) kg(-1) day(-1), respectively. The production channels were studied and identified. By studying the difference in the production of 73Ge*(1/2-) between the reactor ON and OFF spectra, limiting sensitivities in the range of similar to 10(-42) to 10(-43) cm(2) for the cross sections of neutrino-induced nuclear transitions were derived. The dominant backgrounds are due to beta(-) decays of cosmic-ray-induced (73)Ga. The prospects of enhancing the sensitivities at underground locations are discussed.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000257178700018
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/212858
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
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TEXONO Collaboration. Production and decay of the (73)Ge*(1/2(-)) metastable state in a low-background germanium detector[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2008,35(7).
APA TEXONO Collaboration.(2008).Production and decay of the (73)Ge*(1/2(-)) metastable state in a low-background germanium detector.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,35(7).
MLA TEXONO Collaboration."Production and decay of the (73)Ge*(1/2(-)) metastable state in a low-background germanium detector".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 35.7(2008).
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