Search for tau- ---> 4pi- 3pi+ (pi0) nu/tau Decays
Abstract
A search for the decay of the {tau} lepton to seven charged pions and at most one {pi}{sup 0} was performed using the BABAR detector at the PEP-II e{sup +}e{sup -} collider. The analysis uses data recorded on and near the {Upsilon}(4S) resonance between 1999 and 2003, a total of 124.3 fb{sup -1}. They observe 7 events with an expected background of 11.9 {+-} 2.2 events and calculate a preliminary upper limit of BR({tau}{sup -} {yields} 4{pi}{sup -} 3{pi}{sup +}({pi}{sup 0}){nu}{sub {tau}}) < 2.7 x 10{sup -7} at 90% CL. This is a significant improvement over the previous limit established by the CLEO Collaboration.
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 890356
- Report Number(s):
- SLAC-PUB-11291
TRN: US0604561
- DOE Contract Number:
- AC02-76SF00515
- Resource Type:
- Conference
- Journal Name:
- Nucl.Phys.Proc.Suppl.144:21-26,2005
- Additional Journal Information:
- Conference: Prepared for 8th International Workshop on Tau Lepton Physics (Tau 04), Nara, Japan, 14-17 Sep 2004
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DECAY; LEPTONS; PHYSICS; PIONS; RESONANCE; TAU PARTICLES; Experiment-HEP,HEPEX
Citation Formats
Ter-Antonian, R, Kass, R, Allmendinger, T, /Ohio State U., Hast, C, and /SLAC. Search for tau- ---> 4pi- 3pi+ (pi0) nu/tau Decays. United States: N. p., 2005.
Web.
Ter-Antonian, R, Kass, R, Allmendinger, T, /Ohio State U., Hast, C, & /SLAC. Search for tau- ---> 4pi- 3pi+ (pi0) nu/tau Decays. United States.
Ter-Antonian, R, Kass, R, Allmendinger, T, /Ohio State U., Hast, C, and /SLAC. 2005.
"Search for tau- ---> 4pi- 3pi+ (pi0) nu/tau Decays". United States. https://www.osti.gov/servlets/purl/890356.
@article{osti_890356,
title = {Search for tau- ---> 4pi- 3pi+ (pi0) nu/tau Decays},
author = {Ter-Antonian, R and Kass, R and Allmendinger, T and /Ohio State U. and Hast, C and /SLAC},
abstractNote = {A search for the decay of the {tau} lepton to seven charged pions and at most one {pi}{sup 0} was performed using the BABAR detector at the PEP-II e{sup +}e{sup -} collider. The analysis uses data recorded on and near the {Upsilon}(4S) resonance between 1999 and 2003, a total of 124.3 fb{sup -1}. They observe 7 events with an expected background of 11.9 {+-} 2.2 events and calculate a preliminary upper limit of BR({tau}{sup -} {yields} 4{pi}{sup -} 3{pi}{sup +}({pi}{sup 0}){nu}{sub {tau}}) < 2.7 x 10{sup -7} at 90% CL. This is a significant improvement over the previous limit established by the CLEO Collaboration.},
doi = {},
url = {https://www.osti.gov/biblio/890356},
journal = {Nucl.Phys.Proc.Suppl.144:21-26,2005},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 21 00:00:00 EDT 2005},
month = {Tue Jun 21 00:00:00 EDT 2005}
}
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