Affiliation:
1. Chinese Academy of Sciences
Abstract
In order to obtain the mass of \boldsymbol{\tau}𝛕
lepton at BESIII precisely, a beam energy measurement system was built
at BEPCII. A scenario for high precision \boldsymbol{\tau}𝛕
mass measurement was put forth before data taken. More than 130
\boldsymbol{pb^{-1}}𝐩𝐛−1\boldsymbol{\tau}𝛕
mass scan data were collected in April 2018, and the uncertainty of
\boldsymbol{m_{\tau}}𝐦𝛕
is expected to be less than 100 keV.
Funder
Ministry of Science and Technology of the People's Republic of China
National Natural Science Foundation of China
Russian Foundation for Basic Research
Russian Science Foundation
United States Department of Energy
Cited by
1 articles.
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1. The BESIII physics programme;Nature Reviews Physics;2019-07-29