Computing and Library Services - delivering an inspiring information environment

Search for the decay τ-→4π-3π+(π0)ντ

Aubert, B. et al. (2005) Search for the decay τ-→4π-3π+(π0)ντ. Physical Review D, 72 (1). 012003. ISSN 1550-7998

Metadata only available from this repository.


A search for the decay of the τ lepton to seven charged pions and one or zero π0 mesons was performed using the BABAR detector at the PEP-II asymmetric-energy e+e- collider. The analysis uses 232.2  fb-1 of data at center-of-mass energies on or near the Υ(4S) resonance. We observe 24 events with an expected background of 21.6±1.3 events. Without evidence for a signal, we calculate an upper limit of B(τ-→4π-3π+(π0)ντ)<3.0×10-7 at 90% confidence level. This is an improvement by nearly an order of magnitude over the previously established limit. In addition, we set upper limits for the exclusive decays τ-→4π-3π+ντ and τ-→4π-3π+π0ντ.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Related URLs:
Depositing User: Sharon Beastall
Date Deposited: 30 Jun 2011 11:51
Last Modified: 30 Jun 2011 11:51


Downloads per month over past year

Repository Staff Only: item control page

View Item View Item

University of Huddersfield, Queensgate, Huddersfield, HD1 3DH Copyright and Disclaimer All rights reserved ©