Inclusive. eta. production in. tau. decays

Conference · Thu Jan 01 00:00:00 EST 1987

OSTI ID:5574342

Abachi, S; Akerlof, C; Baringer, P; Blockus, D; Brabson, B; Brom, J M; Bylsma, B G; Chapman, J; Cork, B; De Bonte, R; Derrick, M; Errede, D; Jung, C; Ken, M; Koltick, D S; Kooijman, P; Loos, J S; Low, E H; McIlwain, R L; Meyer, D I ; Miller, D H; Musgrave, B; Neal, H; Ng, C R; Nitz, D; Ogren, H; Paik, H W; Price, L E; Rangan, L K; Repond, J; Rust, D R; Shibata, E I; Sugano, K; Thun, R; Tschirhart,

We have searched for inclusive eta production in tau decays using a sample of 2553 events of e{sup +}e{sup minus} {yields} {tau}{sup +}{tau}{sup minus} in the one-three topology. The data were taken with the High Resolution Spectrometer at {radical}s = 29 GeV. Our results are based on an analysis of the {pi}{sup +}{pi}{sup minus} invariant mass spectrum to find the narrow peak resulting from the decay sequence {tau} {yields} {eta}x and {eta} {yields} {pi}{sup +}{pi}{sup minus}{pi}{degree}. No clear peak is observed and a 90% confidence upper limit on the process {tau} {yields} {eta}x of 2.1% is found. For decays {tau} {yields} {eta}{eta}x the 90% confidence upper limit is 1.3%. Our best limit on {tau} {yields} {eta}{eta}x is obtained from tau decay to five charged particles with a 90% confidence level upper limit of 0.5%.

• Research Organization: Argonne National Lab., IL (USA); Indiana Univ., Bloomington (USA); Michigan Univ., Ann Arbor (USA); Purdue Univ., Lafayette, IN (USA); Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5574342
• Report Number(s): ANL-HEP-CP-87-70; PU-87-601; IUHEE-87-09; UM-HE-87-16; CONF-870797-14; CONF-870797-; ON: DE88009968
• Resource Relation: Conference: International symposium on lepton and photon interactions at high energies, Hamburg (Germany), 27-31 Jul 1987
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
MESONS
PARTICLE PRODUCTION
TAU PARTICLES
PARTICLE DECAY
EXPERIMENTAL DATA
INCLUSIVE INTERACTIONS
MASS SPECTRA
BOSONS
DATA
DECAY
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HEAVY LEPTONS
INFORMATION
INTERACTIONS
LEPTONS
NUMERICAL DATA
PARTICLE INTERACTIONS
POSTULATED PARTICLES
SPECTRA
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties