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 rates and spectra of {pi}{sup plus minus}, K{sup plus minus}, p/{bar p}, K{sup O} and {Lambda}{sup O}/{bar {Lambda}}{sup O} in light- and heavy-flavor hadronic Z{sup O} decays and for particles and antiparticles separately in quark jets. The SLD Cherenkov ring imaging detector was used to identify charged hadrons. Samples enriched in light (uds) and b events were tagged using impact parameters of charged tracks, and a sample enriched in quark (over antiquark) jets was tagged using the electron beam polarization, We observe a clear flavor dependence in production rates and spectrum shapes, but only a small effect in {xi}=ln(1/x{sub p}) peak positions. Differences between baryons and antibaryon spectra in quark jets offer direct confirmation that faster particles are more likely to contain the initial quark.
- 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); United Kingdom Engineering and Physical Sciences Research Council (United Kingdom); Istituto Nazionale di Fisica Nucleare, Rome (Italy); Japan-US Cooperative Research Project on High Energy Physics, Nagoya (Japan)
- DOE Contract Number:
- AC03-76SF00515; FG02-91ER40676; FG03-92ER40701; FG03-91ER40618; FG03-92ER40689; FG03-93ER40788; FG02-91ER40672; FG02-91ER40677; AC03-76SF00098; FG02-92ER40715; AC02-76ER03069; FG06-85ER40224; FG05-91ER40627; AC02-76ER00881; FG02-92ER40704
- OSTI ID:
- 367136
- Report Number(s):
- SLAC-PUB-6920; CONF-950705-50; ON: DE96013866; 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: 96:024856
- Resource Relation:
- Conference: HEP 95: international Europhysics conference on high-energy physics, Brussels (Belgium), 27 Jul - 2 Aug 1995; Other Information: PBD: Jul 1995
- Country of Publication:
- United States
- Language:
- English
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