Extract signals by fitting chi(2) distribution of the kinematic fit
文献类型：期刊论文
| 作者 | Ping RG(平荣刚) ; Mo XH(莫晓虎); Du SX(杜书先); Liu J(刘晶); Ma LL(马连良); Shen CP(沈成平); Wang ZY(王至勇); Yuan ZZ(苑长征); Ping, RG; Mo, XH
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| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
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| 出版日期 | 2007 |
| 卷号 | 31期号:3页码:#REF! |
| 关键词 | radiative decay fit to chi(2) distribution Monte-Carlo simulation |
| 通讯作者 | Ping, RG (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. |
| 英文摘要 | In measuring the psi(2S) radiative decays at BES II, contribution of the background is serious inmost of the final states. To extract the number of signal events, a fit to the chi(2) distribution of kinematic fit using signal and background components is proposed. Extensive Monte-Carlo simulations (MCS) are performed, and the results show that the shape of X 2 distribution of the signal channel looks different from those of the background channels, thus it provides us by fitting the X 2 distribution of the data to extract the number of signal events. An input-output test is performed using MCS, and the uncertainty of the fit method is found to be less than 2%. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear ; Physics, Particles & Fields |
| 收录类别 | SCI |
| WOS记录号 | WOS:000244902300001 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/227077]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 推荐引用方式 GB/T 7714 | Ping RG,Mo XH,Du SX,et al. Extract signals by fitting chi(2) distribution of the kinematic fit[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2007,31(3):#REF!. |
| APA | 平荣刚.,莫晓虎.,杜书先.,刘晶.,马连良.,...&Yuan, CZ.(2007).Extract signals by fitting chi(2) distribution of the kinematic fit.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,31(3),#REF!. |
| MLA | 平荣刚,et al."Extract signals by fitting chi(2) distribution of the kinematic fit".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 31.3(2007):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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