J. C. Anjos by the E791 Collaboration
Published 1999-12-17Version 1
We present the Fermilab E791 measurement of baryon - antibaryon asymmetries in the production of Lambda^0, Cascade, Omega and Lambda_c in 500 GeV/c pi^- Nucleon interactions. Asymmetries have been measured as a function of x_F and p_T**2 over the range -0.12 < x_F < 0.12 and p_T**2 < 4$ (GeV/c)**2 for hyperons and -0.1 < x_F < 0.3 and p_T**2 < 8 (GeV/c)**2 for the Lambda_c baryons. We observe clear evidence of leading particle effects and a basic asymmetry even at x_F=0. These are the first high statistics measurements of the asymmetry in both the target and beam fragmentation regions in a fixed target experiment.
Comments: To appear in proceedings of the Hyperon'99. 4 pages, 5 ps figures, hyperon99 style included
Asymmetries in the Production of $Λ_c^+$ and $Λ_c^-$ Baryons in 500 GeV/c $π^-$ Nucleon Interactions
Asymmetries between the production of D+ and D- mesons from 500 GeV/c pi- nucleon interactions as a function of xF and pt**2
Asymmetries in the Production of Lambda0 in 250 GeV/c pi+-, K+- and p -- Nucleon Interactions
