Preliminary measurements of production of {pi}{sup {plus_minus}}, K{sup {plus_minus}}, p, K{sup 0} and {Lambda}{sup 0} in hadronic Z{sup 0} decays
We have measured production of {pi}{sup {+-}}, {Kappa}{sup {+-}}, {ital p}/{ital {bar p}}, {Kappa}{sup 0} and {Lambda}{sup 0}/{bar {Lambda}}{sup 0} as a function of momentum in inclusive hadronic {ital Z}{sup 0} decay events and separately in events containing primary light-({ital uds}) and {ital b}-quarks. The SLD Cherenkov Ring Imaging Detector was used to identify charged pions, kaons, and protons over most of the available momentum range 0.8{lt}{ital p}{lt}33 GeV/c. The neutral {Kappa}{sup 0}{sub s} and {Lambda}{sup 0} were reconstructed using the {pi}{sup +}{pi}{sup -} and {ital p}{pi}{sup -} decay modes, respectively. We present the first comparisons of momentum of charged tracks measured in the SLD Vertex Detector. Substantial differences are observed, consistent with the kinematics of {ital B}-hadron production in Z{sup 0} decays and the properties of {ital B}-hadron decays as measured at lower energies.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States); Science and Engineering Research Council, Swindon (United Kingdom); Istituto Nazionale di Fisica Nucleare, Rome (Italy); Japan-US Cooperative Research Project on High Energy Physics, Nagoya (Japan)
- DOE Contract Number:
- FG02-91ER40676; FG03-92ER40701; FG03-91ER40618; FG03-92ER40689; FG03-93ER40788; FG02-91ER40672; FG02-91ER40677; AC03-76SF00098; FG02-92ER40715; AC02-76ER03069; FG06-85ER40224; AC03-76SF00515; FG05-91ER40627; AC02-76ER00881; FG02-92ER40704
- OSTI ID:
- 282844
- Report Number(s):
- SLAC-PUB-7199; CONF-960765-9; ON: DE96014141; CNN: Grant PHY-91-13428; Grant PHY-89-21320; Grant PHY-92-04239; Grant PHY-88-17930; Grant PHY-88-19316; Grant PHY-92-03212; TRN: 96:020951
- Resource Relation:
- Conference: 28. international conference on high-energy physics, Warsaw (Poland), 25-31 Jul 1996; Other Information: PBD: Jun 1996
- Country of Publication:
- United States
- Language:
- English
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