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Lambda_c^+/Lambda_c^- Asymmetry in Hadroproduction from Heavy-Quark Recombination

Eric Braaten·Masaoki Kusunoki·Yu Jia·Thomas Mehen
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Abstract

Asymmetries in the hadroproduction of charm particles directly probe power corrections to the QCD factorization theorems. In this paper, the heavy-quark recombination mechanism, a power correction that explains charm meson asymmetries, is extended to charm baryons. In this mechanism, a light quark participates in the hard scattering that creates a charm quark and they hadronize together into a charm baryon. This provides a natural and economical explanation for the Λ_c^+/Λ_c^- asymmetries measured in πN and p N collisions.

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Eric Braaten, Masaoki Kusunoki, Yu Jia, Thomas Mehen. 2003-04-29. Lambda_c^+/Lambda_c^- Asymmetry in Hadroproduction from Heavy-Quark Recombination. https://doi.org/10.1103/physrevd.70.054021

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