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Particle-Antiparticle Asymmetries of $Λ$ Production in Hadron-Nucleon Collisions

Bo-Qiang Ma·Ivan Schmidt·Jian-Jun Yang
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Abstract

The particle-antiparticle asymmetries of $Λ$ production in 250 GeV/c $π^{\pm}$, $K^{\pm}$, and $p$ --nucleon collisions are studied with two model parametrizations of quark to $Λ$ fragmentation functions. It is shown that the available data can be qualitatively explained by the calculated results in both the quark-diquark model and a pQCD based analysis of fragmentation functions. The differences in the two model predictions are significant for $K^{\pm}$ beams, and high precision measurements of the asymmetries with detailed $x_F$ and $P_T$ information can discriminate between different predictions.

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Bo-Qiang Ma, Ivan Schmidt, Jian-Jun Yang. 2004-08-03. Particle-Antiparticle Asymmetries of $Λ$ Production in Hadron-Nucleon Collisions. https://doi.org/10.1016/j.physletb.2004.07.049

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