We search for the neutrinoless, lepton-flavor-violating tau decays tau(-)-> l(-) V(0), where l is an electron or muon and V(0) is a vector meson reconstructed as phi -> K(+) K(-), rho -> pi(+) pi(-), K* -> K(+) pi(-), (K) over bar*-> K(-) pi(+). The analysis has been performed using 451 fb(-1) of data collected at an e(+) e(-) center-of-mass energy near 10.58 GeV with the BABAR detector at the PEP-II storage rings. The number of events found in the data is compatible with the background expectation, and upper limits on the branching fractions are set in the range (2.6-19) x 10(-8) at the 90% confidence level.

Improved Limits on Lepton-Flavor-Violating tau Decays to l phi, l rho, lK*, and l(K)over-bar*

PALANO, Antimo;PAPPAGALLO, MARCO IGNAZIO;
2009-01-01

Abstract

We search for the neutrinoless, lepton-flavor-violating tau decays tau(-)-> l(-) V(0), where l is an electron or muon and V(0) is a vector meson reconstructed as phi -> K(+) K(-), rho -> pi(+) pi(-), K* -> K(+) pi(-), (K) over bar*-> K(-) pi(+). The analysis has been performed using 451 fb(-1) of data collected at an e(+) e(-) center-of-mass energy near 10.58 GeV with the BABAR detector at the PEP-II storage rings. The number of events found in the data is compatible with the background expectation, and upper limits on the branching fractions are set in the range (2.6-19) x 10(-8) at the 90% confidence level.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11586/27284
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 12
social impact