Search for neutrinoless tau decays involving pi0 or eta mesons

Bonvicini, G.; Cinabro, D.; Greene, R.; Perera, L.P.; Zhou, G.J.; Barish, B.; Chadha, M.; Chan, S.; Eigen, G.; Miller, J.S.

doi:10.1103/PhysRevLett.79.1221

Search for neutrinoless tau decays involving pi0 or eta mesons

CLEO

Collaboration

Apr, 1997

9 pages

Published in:

Phys.Rev.Lett. 79 (1997) 1221-1224

e-Print:

hep-ex/9704010 [hep-ex]

DOI:

10.1103/PhysRevLett.79.1221

PDG:

{{\mathit \tau}^{-}}

\rightarrow

{{\mathit \mu}^{-}}{{\mathit \eta}}

Report number:

SLAC-PUB-9790,
CLNS-97-1469,
CLEO-97-4

Experiments:

CESR-CLEO-II

View in:

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Abstract:

We have searched for lepton family number violating decays of the

\tau

lepton using final states with an electron or a muon and one or more

\pi~0

or

\eta

mesons but no neutrinos. The data used in the search were collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR) and correspond to an integrated luminosity of 4.68

fb~{-1}

. No evidence for signals was found, resulting in much improved limits on the branching fractions for the one-meson modes and the first upper limits for the two-meson modes.

electron positron: colliding beams
electron positron: annihilation
tau: pair production
tau: rare decay
decay: search for
final state: (0neutrino)
pseudoscalar meson: production
pi0
eta
tau: branching ratio

References(10)

Figures(0)

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