Production rates of strange vector mesons at the Z0 resonance
- Stanford Univ., CA (United States)
This dissertation presents a study of strange vector meson production, "leading particle" effect and a first direct measurement of the strangeness suppression parameter in hadronic decays of the neutral electroweak boson, Z. The measurements were performed in e+e- collisions at the Stanford Linear Accelerator Center (SLAC) with the SLC Large Detector (SLD) experiment. A new generation particle ID system, the SLD Cerenkov Ring Imaging Detector (CRID) is used to discriminate kaons from pions, enabling the reconstruction of the vector mesons over a wide momentum range. The inclusive production rates of ρ and K*0 and the differential rates versus momentum were measured and are compared with those of other experiments and theoretical predictions. The high longitudinal polarisation of the SLC electron beam is used in conjunction with the electroweak quark production asymmetries to separate quark jets from antiquark jets. K*0 production is studied separately in these samples, and the results show evidence for the "leading particle" effect. The difference between K*0 production rates at high momentum in quark and antiquark jets yields a first direct measurement of strangeness suppression in jet fragmentation.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 501496
- Report Number(s):
- SLAC-R--505; ON: DE97007279
- Country of Publication:
- United States
- Language:
- English
Similar Records
Production Rates of Strange Vector Mesons at the Z0 Resonance [Thesis]
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
Measurement of charged hadron spectra at the Z0 with Cherenkov ring imaging
Technical Report
·
Thu May 01 00:00:00 EDT 1997
·
OSTI ID:1454177
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 00:00:00 EDT 1996
·
OSTI ID:628018
Measurement of charged hadron spectra at the Z0 with Cherenkov ring imaging
Thesis/Dissertation
·
Fri Aug 01 00:00:00 EDT 1997
·
OSTI ID:663281