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BESⅢ上τ轻子对产生阈附近衰变分支比测量的模拟研究
  • ISSN号：0258-0934
  • 期刊名称：《核电子学与探测技术》
  • 时间：0
  • 分类：O57[理学—粒子物理与原子核物理;理学—物理]
  • 作者机构：[1]郑州大学,郑州450001, [2]中国科学院高能物理研究所,北京100049, [3]中国科学院研究生院,北京100049, [4]南京大学,南京210093, [5]清华大学,北京100084, [6]北京大学,北京100871, [7]辽宁大学,沈阳110036, [8]广西师范大学,桂林541004, [9]中国科学技术大学近代物理系,合肥230026, [10]中国高等科技中心,北京100080, [11]山东大学,济南250100
  • 相关基金：基金项目：国家自然科学基金（10491300,10491303,10735080）,中国科学院重大科研装备研制项目（H7292330S7）,中国科学院百人计划（U-25,U-54,U-612）资助.
作者： 花春飞[1,2], 莫晓虎[2], 李玉晓[1], 边渐鸣[2,3], 曹国富[2,3], 曹学香[2,3], 陈申见[4], 邓子艳[2], 傅成栋[5,2], 高原宁[3], 何康林[2], 何苗[2,3], 黄彬[2,3], 黄性涛[10], 季晓斌[2], 李海波[2], 李卫东[2], 梁羽铁[6], 刘春秀[2], 刘怀民[2], 刘秋光[2,3], 刘锁[7], 马秋梅[2], 马想[2,3], 冒亚军[6], 毛泽普[2], 潘明华[8], 庞彩莹[8], 平荣刚[2], 秦亚红[1], 邱进发[2], 孙胜森[2], 孙永昭[2,3], 王纪科[2,3], 王亮亮[2,3], 文硕频[2], 伍灵慧[2], 谢宇广[2,3], 徐敏[9], 严亮[2,3], 尤郑昀[6], 俞国威[2], 苑长征[2], 袁野[2], 张长春[2], 张建勇[2,10], 张学尧[11], 张瑶[2], 郑阳恒[3], 朱永生[2], 朱志丽[8], 邹佳恒[10]
关键词： τ阈值, eμ和eπ末态, 分支比, 模拟研究, τ threshold, eμand eπ final states, branching ratio, Monte Carlo study
中文摘要：

利用BESⅢ的离线软件系统模拟τ轻子对在其产生阈处衰变到包含eμ和eπ子的末态；借助粒子鉴别软件对衰变末态进行筛选，得到相应的探测效率及本底比率，由此估算出相应于特定统计误差精度要求的数据获取时间。

英文摘要：

The decays of τ lepton to eμ and en final states at the -c-pair production threshold are studied based on BESⅢ simulation system. The signal particles are selected with the help of the speciial particle identification software. Obtained are both selection efficiency and background proportion, by virtue of the former, the data taking time is estimated for the certain precision requirementon the branching ratio measurement.

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期刊信息
  • 《核电子学与探测技术》
  • 北大核心期刊（2011版）
  • 主管单位:中国核工业集团公司
  • 主办单位:中核（北京）核仪器厂
  • 主编：李卫国
  • 地址：北京经济技术开发区宏达南路3号
  • 邮编：100176
  • 邮箱：lw261@sina.com
  • 电话：010-59573451
  • 国际标准刊号：ISSN：0258-0934
  • 国内统一刊号：ISSN：11-2016/TL
  • 邮发代号:
  • 获奖情况:
  • 中国中文核心期刊,中国科协三等奖,中国核工业部二等奖
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:6170