e(+)/e(-) discrimination in liquid scintillator and its usage to suppress He-8/Li-9 backgrounds
文献类型：期刊论文
| 作者 | Cheng YP(程雅苹) ; Wen LJ(温良剑); Zhang P(张鹏); Cao XZ(曹兴忠); Cheng, YP; Wen, LJ; Zhang, P; Cao, XZ
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| 刊名 | CHINESE PHYSICS C中国物理. C
 |
| 出版日期 | 2017 |
| 卷号 | 41期号:1页码:16101 |
| 关键词 | PSD LS ortho-positronium |
| ISSN号 | 1674-1137 |
| DOI | 10.1088/1674-1137/41/1/016101 |
| 文献子类 | Article |
| 英文摘要 | Reactor neutrino experiments build large-scale detector systems to detect neutrinos. In liquid scintillator, a neutral bound state of a positron and an electron, named positronium, can be formed. The spin triplet state is called ortho-positronium (o-Ps). In this article, an experiment is designed to measure the lifetime of o-Ps, giving a result of 3.1 ns. A PSD parameter based on photon emission time distribution (PETD) was constructed to discriminate e(+)/e(-). Finally, the application of e(+)/e(-) discrimination in the JUNO experiment is shown. It helps suppress He-8/Li-9 backgrounds and improves the sensitivity by 0.6 in chi(2) analysis with an assumption of sigma=1 ns PMT Transit Time Spread, which will bring a smearing effect to the PETD. |
| WOS关键词 | LIFETIME |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| CSCD记录号 | CSCD:5899542 |
| WOS记录号 | WOS:000393254200016 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284280]  |
| 专题 | 高能物理研究所_实验物理中心 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Cheng YP,Wen LJ,Zhang P,et al. e(+)/e(-) discrimination in liquid scintillator and its usage to suppress He-8/Li-9 backgrounds[J]. CHINESE PHYSICS C中国物理. C,2017,41(1):16101. |
| APA | 程雅苹.,温良剑.,张鹏.,曹兴忠.,Cheng, YP.,...&Cao, XZ.(2017).e(+)/e(-) discrimination in liquid scintillator and its usage to suppress He-8/Li-9 backgrounds.CHINESE PHYSICS C中国物理. C,41(1),16101. |
| MLA | 程雅苹,et al."e(+)/e(-) discrimination in liquid scintillator and its usage to suppress He-8/Li-9 backgrounds".CHINESE PHYSICS C中国物理. C 41.1(2017):16101. |
入库方式： OAI收割
来源：高能物理研究所
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