Latest results from the MARK II at PEP
We present single photon annihilation results from the MARK II detector at PEP based on approx. 100 pb/sup -1/ of integrated luminosity taken at a center of mass energy ..sqrt..s = 29 GeV. A study of inclusive leptons for momenta greater than or equal to 2 GeV/c yield the average semileptonic branching ratios of bottom (b) and charm (c) quarks and information about the b fragmentation function. A measurement of the bottom hadron lifetime is presented based on a study of the prompt lepton impact parameters. In addition we report on a precise measurement of the tau lifetime and an updated D/sup 0/ lifetime. We also present a search for supersymmetric electrons, weak neutral current couplings from leptons and bottom particles and evidence for K*'s at PEP. 43 references.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 5461883
- Report Number(s):
- SLAC-PUB-3245; CONF-8307109-1; ON: DE84003858
- Resource Relation:
- Conference: 11. SLAC summer institute conference on particle physics - dynamics and spectroscopy at high energy, Stanford, CA, USA, 18 Jul 1983
- Country of Publication:
- United States
- Language:
- English
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PARTICLE PRODUCTION
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SEMILEPTONIC DECAY
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BRANCHING RATIO
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CHARMED MESON RESONANCES
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ENERGY RANGE
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GEV RANGE
HADRONS
HEAVY LEPTONS
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LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
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NUMERICAL DATA
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