Download or read book Study of High-multiplicity 3-prong and 5-prong Tau Decays at BaBar written by and published by . This book was released on 2012 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of the branching fractions of 3-prong and 5-prong? decay modes using a sample of 430 million? lepton pairs, corresponding to an integrated luminosity of 468 fb−1, collected with the BABAR detector at the PEP-II asymmetric energy ee− storage rings. The?− → (3?)−??{sub?},?− → (3?)− →??{sub?} and {tau}− →?− f1(1285)?{sub {tau}} branching fractions are presented as well as a new limit on the branching fraction of the isospin-forbidden, second-class current {tau}− →?−????????(958)?{sub {tau}} decay. We find no evidence for charged kaons in these decay modes and place the first upper limits on their branching fractions.