A Detailed Study of Strange Particle Production in e+ee^+ e^- Annihilation at High-energy

Collaboration
Sep, 1984
34 pages
Published in:
  • Z.Phys.C 27 (1985) 27
Report number:
  • DESY-84-093
Experiments:

Citations per year

1984199420042014202402468101214
Abstract: (Springer)
Results onK0 and Λ production ine+e− annihilation at c.m. energies of 14, 22 and 34 GeV are presented. The shape of theK0 and Λ differential cross sections are very similar to each other and to those of π±,K± andp(pˉ)p(\bar p). Scaling violations are observed forK0 production. We obtain a value for the probability to produce strange quark-antiquark pairs relative to that to produce up or down quark-antiquark pairs of 0.35±0.02±0.05. The value ofRh=σ(e+e-→hX)/σµµ is shown to rise steadily with c.m. energy for all particle species. At 34 GeV we find 1.48±0.05K0 and 0.31±0.03 Λ per event. We have searched for possible Λ polarization. The production ofK0's and Λ's in jets is examined as a function ofpT2 and rapidity and compared to that of all charged particles; the yields in two and three jets are also investigated. Results are presented from events with two baryons(Λ,Λˉ,porpˉ)(\Lambda ,\bar \Lambda ,por\bar p) observed.
  • ELECTRON POSITRON: COLLIDING BEAMS
  • COLLIDING BEAMS: ELECTRON POSITRON
  • ELECTRON POSITRON: ANNIHILATION
  • ANNIHILATION: ELECTRON POSITRON
  • K0: ELECTROPRODUCTION
  • ELECTROPRODUCTION: K0
  • LAMBDA: ELECTROPRODUCTION
  • ELECTROPRODUCTION: LAMBDA
  • DIFFERENTIAL CROSS SECTION
  • SCALING: VIOLATION