| 高雅,吴臻泓,钟翠,黄麟钦,李小华,张振华,郑波.含中间共振态的三体末态探测效率的研究[J].南华大学学报(自然科学版),2020,34(2):16~20.[GAO Ya,WU Zhenhong,ZHONG Cui,HUANG Linqin,LI Xiaohua,ZHANG Zhenhua,ZHENG Bo.Study on Detection Efficiency of Three-body Final State with Intermediate Resonance[J].Journal of University of South China(Science and Technology),2020,34(2):16~20.] |
| 含中间共振态的三体末态探测效率的研究 |
| Study on Detection Efficiency of Three-body Final State with Intermediate Resonance |
| 投稿时间：2019-04-01 |
| DOI： |
| 中文关键词: 三体末态 二维不变质量谱加权法 探测效率计算 中间共振态 |
| 英文关键词:three body final state two-dimension invariant mass spectra weight method detection efficiency calculation intermediate resonance |
| 基金项目:湖南省研究生科研创新项目(CX20190743) |
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| 中文摘要: |
| 多体末态过程通常包含的中间共振态直接影响到探测效率的确定。研究了采用二维不变质量谱加权的方法,用于计算多体末态过程的探测效率。对三体末态e+e－→π+π－η过程,考虑了e+e－→π+π－η,e+e－→ρη和e+e－→a±2π三个过程的贡献,并利用二维不变质量谱加权法对该末态模拟数据样本的探测效率进行了估计。与直接加权的结果对比表明该方法能够快速且有效地确定探测效率。 |
| 英文摘要: |
| The intermediate resonance states in the multi-body final state process affect the detection efficiency directly.A two-dimension invariant mass spectra weight method was developed to calculate the detection efficiency of multi-body final state process.For the three-body final state e+e－→π+π－η,two intermediate processes,e.g.e+e－→ρη and e+e－→a±2π should be considered.The study calculates the detection efficiency of this final state for the simulated data sample by employing the two-dimension invariant mass spectra weight method.The results are consistent with those from the direct weight method,while this method is more effective and fast. |
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