Search for Second-Class Currents in tau- -> omega.pi-.nu_tau

Details Search for Second-Class Currents in tau- -> omega.pi-.nu_tau Search for Second-Class Currents in tau- -> omega.pi-.nu_tau

2009-04-20

arxiv.org/abs/0904.3080v1

Phys.Rev.Lett.103:041802,2009

Physics

High Energy Physics

High Energy Physics - Experiment

Submitted to Phys. Rev. Lett

Scientific paper

10.1016/j.nuclphysbps.2009.03.02

We report an analysis of tau- decaying into omega.pi-.nu_tau with omega ->
pi+pi-pi0 using a data sample containing nearly 320 million tau pairs collected
with the BABAR detector at the PEP-II B-Factory. We find no evidence for
second-class currents and we set an upper limit of 0.69% at 90% confidence
level for the fraction of second-class currents in this decay mode.

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