New results on rare tau decays

Authors
Citation
Kk. Gan, New results on rare tau decays, NUCL PH B-P, 76, 1999, pp. 383-390
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
ISSN journal
0920-5632 → ACNP
Volume
76
Year of publication
1999
Pages
383 - 390
Database
ISI
SICI code
0920-5632(199904)76:<383:NRORTD>2.0.ZU;2-4
Abstract
This is a review of new results on rare decays of the tau lepton. The resul ts include new upper limits on the seven-pion decay tau(-) --> 4 pi(-)3 pi( +)(pi(o))nu(tau), and new measurements on the five-pion decay tau(-) --> 3 pi(-)2 pi(+) nu(tau) and the six-pion decays, tau(-) --> 3 pi(-)2 pi(+) pi( o)nu(tau) and tau(-) --> 2 pi(-) pi(+)3 pi(o)nu(tau), including the first o bservation of the decay tau(-) --> pi(-)omega 2 pi(o)nu(tau). Also included is a review of the first measurement of the Cabibbo-suppressed decay tau(- ) --> K*- eta nu(tau). The results are compared with the Standard Model pre dictions, including a detailed comparison of the six-pion decays with isosp in symmetry and Conserved-Vector-Current (CVC) expectations.