Asymmetries in the production of lambda zero, cascade minus, and omega minus hyperons in 500 GeV/c pi minus-Nucleon Interactions

Abstract

Using data from Fermilab fixed-target experiment E791, we have measured particle-antiparticle production asymmetries for lambda zero, cascade minus, and omega minus hyperons in pi minus-nucleon interactions at 500 GeV/c. The asymmetries are measured as functions of Feynman-x (x_F) and pt^2 over the ranges of -0.12 GE x_F LE 0.12 and 0 GE pt^2 LE 4 (GeV/c)^2. We find substantial asymmetries, even at x_F = 0. We also observe leading-particle- type asymmetries which qualitatively agree with theoretical predictions.

15 pages, including 5 figures and 2 tables. To be submitted to Phys. Lett. B

References in corpus (1)

• The E791 Parallel Architecture Data Acquisition System

Cited by in corpus (14)

• Constraints on charm-anticharm asymmetry in the nucleon from lattice QCD
• Antiparticle to Particle Production Ratios in Hadron-Hadron and d-Au Collisions in the DPMJET-III Monte Carlo
• String Junction Effects for Forward and Central Baryon Production in Hadron-Nucleus Collisions
• On the intrinsic charm and the recombination mechanisms in charm hadron production
• Feynman scaling violation on baryon spectra in pp collisions at LHC and cosmic ray energies
• Asymmetries in the Production of Lambda0 in 250 GeV/c pi+-, K+- and p -- Nucleon Interactions
• CORSIKA Implementation of Heavy Quark Production and Propagation in Extensive Air Showers
• Baryon Number Transfer in High Energy $hp$ Collisions
• The leading particle effect from light quark fragmentation in charm hadroproduction
• Tetraquarks and Pentaquarks in String Models
• Strange particle production at RHIC in the Dual Parton Model
• Asymmetries Between Strange and Antistrange Particle Production in Pion-Proton Interactions
• Lambda-Baryon Production in pi(+-)n Interactions
• Hadronization and chirality in strongly interacting partonic matter - the future of the RHIC program