Kaon content of three-prong decays of the tau lepton

Technical Report · Sat Dec 01 04:00:00 EST 1990

DOI:https://doi.org/10.2172/6030650· OSTI ID:6030650

Eastman, J J

We present a series of measurements involving the production of charged kaons in three-prong hadronic decays of the {tau} lepton. The data sample was obtained with the TPC/Two-Gamma detector facility at PEP. We set a limit on the branching fraction BR({tau}{sup {minus}} {yields} {nu}{sub {tau}}K{sup {minus}}K{sup 0}) < 0.26% at the 95% confidence level. The process {tau}{sup {minus}} {yields} {nu}{sub {tau}}K{sup {minus}}K{sup 0} is related via SU(3) to the second-class current decay {tau}{sup {minus}} {yields} {nu}{sub {tau}}{pi}{sup {minus}}{eta}. We also present new measurements of the three-prong branching fractions BR({tau}{sup {minus}} {yields} {nu}{sub {tau}}K{sup {minus}}{pi}{sup +}{pi}{sup {minus}} + neutrals) = 0.70 (+0.20/{minus}0.17)% and BR({tau}{sup {minus}} {yields} {nu}{sub {tau}}K{sup {minus}}K{sup +}{pi}{sup {minus}} + neutrals) = 0.16 (+0.10/{minus}0.07)%. 68 refs., 29 figs., 15 tabs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6030650
• Report Number(s): LBL-30035; ON: DE91007647
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Weak Interactions &amp; Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
DATA
DECAY
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
GAMMA RADIATION
HADRONIC PARTICLE DECAY
HADRONS
HEAVY LEPTONS
INFORMATION
IONIZING RADIATIONS
KAONS
LEPTONS
MESONS
NUMERICAL DATA
PARTICLE DECAY
PEP STORAGE RINGS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
RADIATIONS
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
TAU PARTICLES
TIME PROJECTION CHAMBERS