Measurements of the τ mass and the mass difference of the τ+ and τ− atBABAR
B. Aubert, Y. Karyotakis, J. P. Lees, V. Poireau et autres
We present the result from a precision measurement of the mass of the $\ensuremath{\tau}$ lepton, ${M}_{\ensuremath{\tau}}$, based on $423\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of data recorded at the $\ensuremath{\Upsilon}(4S)$ resonance with the BABAR detector. Using a pseudomass endpoint method, we determine the mass to …
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