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

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

2003-04-29

arxiv.org/abs/hep-ph/0304280v1

Phys.Rev. D70 (2004) 054021

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 3 figures

Scientific paper

10.1103/PhysRevD.70.054021

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 \Lambda_c^+/\Lambda_c^- asymmetries measured in \pi N and p N collisions.

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