Search for Lepton-Flavor-Violating tau Decays into a Lepton and an f0(980) Meson

Details Search for Lepton-Flavor-Violating tau Decays into a Lepton and an f0(980) Meson Search for Lepton-Flavor-Violating tau Decays into a Lepton and an f0(980) Meson

2008-10-20

arxiv.org/abs/0810.3519v3

Phys.Lett.B672:317-322,2009

Physics

High Energy Physics

High Energy Physics - Experiment

10 pages, 4 figures, submitted to Phys. Lett. B

Scientific paper

10.1016/j.physletb.2009.01.058

We search for lepton-flavor-violating tau decays into a lepton (electron or muon) and an f0(980) meson using 671 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No events are observed and we set the following 90% C.L. upper limits on the branching fraction products: B(tau- -> e-f0(980))*B(f0(980)->pi+pi-)<3.2x10^-8 and B(tau- -> mu-f0(980))*B(f0(980) -> pi+pi-)<3.4x10^-8. This is the first search performed for these modes.

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