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A scenario for high accuracy τ mass measurement at BEPC-Ⅱ

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【作者】 M. N. AchasovV. E. Blinov蔡啸傅成栋F. A. HarrisQ. Liu莫晓虎N. Yu. MuchnoiI. B. Nikolaev秦庆A. G. ShamovK. Yu. Todyshev王贻芳张建勇

【Author】 M. N. Achasov1 V. E. Blinov1 CAI Xiao2 FU Cheng-Dong2 F. A. Harris3 Q. Liu3 MO Xiao-Hu2 N. Yu. Muchnoi1 I. B. Nikolaev1;1) QIN Qing2 A. G. Shamov1 K. Yu. Todyshev1 WANG Yi-Fang2 ZHANG Jian-Yong2 1 Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences, 11 Lavrentyev, Novosibirsk 630090, Russia 2 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 3 University of Hawaii, Honolulu, HI 96822, USA

【机构】 Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences,11 Lavrentyev, Novosibirsk 630090, RussiaInstitute of High Energy Physics, Chinese Academy of SciencesUniversity of Hawaii, Honolulu,HI 96822, USA

【摘要】 Scenarios for the τ mass measurement at the upgraded Beijing Electron-Positron Collider (BEPC-Ⅱ) are studied. A nested minimization procedure is used to optimize the data taking plan. It is found that by using five energy points with the total integrated luminosity of 100 pb-1, the τ mass can be determined with a statistical error of 50 keV.

【Abstract】 Scenarios for the τ mass measurement at the upgraded Beijing Electron-Positron Collider (BEPC-Ⅱ) are studied. A nested minimization procedure is used to optimize the data taking plan. It is found that by using five energy points with the total integrated luminosity of 100 pb-1, the τ mass can be determined with a statistical error of 50 keV.

【关键词】 τ massscan optimization uncertainty
【Key words】 τ massscan optimization uncertainty
【基金】 Supported by National Natural Science Foundation of China (10775412, 10825524, 10935008);Instrument Developing Project of Chinese Academy of Sciences (YZ200713);Major State Basic Research Development Program (2009CB825203, 2009CB825206);the Knowledge Innovation Project of Chinese Academy of Sciences (KJCX2-YW-N29);RFBR 08-02-00328-a, 08-02-00251-a, 08-02-92200-NSFC-a;SB RAS joint project No. 32 for fundamental researcher with CAS;Department of Energy (DE-FG02-04ER41291) (U. Hawaii)
  • 【文献出处】 中国物理C ,Chinese Physics C , 编辑部邮箱 ,2012年07期
  • 【分类号】O572.214
  • 【下载频次】15
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