# $\tau$ lepton mass measurement at BESIII

25 Dec 2018 Zhang J. Y. on behalf of BESIII collaboration

In order to obtain the mass of $\tau$ lepton at BESIII precisely, a beam energy measurement system was built at BEPCII. A scenario for high precision $\tau$ mass measurement was put forth before data taken... (read more)

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• HIGH ENERGY PHYSICS - EXPERIMENT
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