Production of {pi}{sup {plus_minus}}, K{sup {plus_minus}}, p, K{sup 0}{sub s}, {Lambda}{sup 0}, K{sup *0} and {phi} in Hadronic Z{sup 0} Decays

Conference · Thu Aug 01 04:00:00 EDT 1996

OSTI ID:628018

Dima, Mihai ^[1]

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1. Colorado State Univ., Fort Collins, CO (United States)

Production rates and momentum distributions have been measured for {pi}{sup {+-}}, K{sup {+-}}, p, K{sup 0}{sub s}, {Lambda}{sup 0}, K{sup *0} and {phi} in 150,000 hadronic Z{sup 0} decays recorded by the SLD detector at the SLD collider at SLAC. The analysis uses the SLD Cerenkov Ring Imaging Detector (CRID) for clean and efficient identification of charged tracks and significant background reduction. In addition, K{sup *0} production has been studied in quark and anti-quark jet samples, which were identified by their electroweak forward backward asymmetries using the SLD high electron beam polarization. A difference between the two samples is observed in the K{sup *0} rate at high momentum, consistent with leading particle and strangeness suppression hypotheses.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: FG03-93ER40788; AC03-76SF00515
• OSTI ID: 628018
• Report Number(s): SLAC-PUB--7280; CONF-960812--; ON: DE97009093
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHERENKOV COUNTERS
HADRONIC PARTICLE DECAY
KAONS
LAMBDA PARTICLES
PARTICLE PRODUCTION
PIONS
POLARIZATION
PROTONS
QUARKS
STANFORD LINEAR COLLIDER DETECTOR
Z NEUTRAL BOSONS