B Production Asymmetries in Perturbative QCD

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  • 24 August 2001
Abstract
This paper explores a new mechanism for B hadron production in which a b quark combines with a light parton from the hard-scattering process before hadronizing into the B hadron. This recombination mechanism can be calculated within perturbative QCD up to a few nonperturbative constants. Though suppressed at large transverse momentum by a factor m_b^2/p_t^2 relative to b quark fragmentation production, it can dominate at large rapidities. A signature for this perturbative recombination mechanism in proton-antiproton colliders is the presence of rapidity asymmetries in B hadron cross sections.

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