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

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CAI Xiao, FU Cheng-Dong, MO Xiao-Hu, QIN Qing, WANG Yi-Fang and ZHANG Jian-Yong. A scenario for high accuracy τ mass measurement at BEPC-Ⅱ[J]. Chinese Physics C, 2012, 36(7): 573-577. doi: 10.1088/1674-1137/36/7/001
CAI Xiao, FU Cheng-Dong, MO Xiao-Hu, QIN Qing, WANG Yi-Fang and ZHANG Jian-Yong. A scenario for high accuracy τ mass measurement at BEPC-Ⅱ[J]. Chinese Physics C, 2012, 36(7): 573-577.  doi: 10.1088/1674-1137/36/7/001 shu
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Received: 2011-11-22
Revised: 2011-12-20
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A scenario for high accuracy τ mass measurement at BEPC-Ⅱ

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.

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