Tau Decay Determination of the Strange Quark Mass

Details Tau Decay Determination of the Strange Quark Mass Tau Decay Determination of the Strange Quark Mass

1999-09-29

arxiv.org/abs/hep-ph/9909559v1

Nucl.Phys.Proc.Suppl. 86 (2000) 236-241

Physics

High Energy Physics

High Energy Physics - Phenomenology

5pages. Invited talk at QCD'99 (Montpellier, July 1999)

Scientific paper

10.1016/S0920-5632(00)00571-5

The recent ALEPH measurements of the inclusive Cabibbo--suppressed decay width of the $\tau$ and several moments of its invariant mass distribution are used to determine the value of the strange quark mass. We obtain, in the $\bar{\rm MS}$ scheme, $m_s(M_\tau^2) = (119\pm 24)$ MeV, which corresponds to $ m_s(1 {\rm GeV}^2) = (164 \pm 33) {\rm MeV}, m_s(4 {\rm GeV}^2) = (114\pm 23) {\rm MeV} $.

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