B Production Asymmetries in Perturbative QCD

Abstract

This paper explores a new mechanism for B 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 Lambda_QCD m_b/p_t^2 relative to b quark fragmentation production, it can be important at large rapidities. A signature for this heavy-quark recombination mechanism in proton-antiproton colliders is the presence of rapidity asymmetries in B cross sections. Given reasonable assumptions about the size of nonperturbative parameters entering the calculation, we find that the asymmetries are only significant for rapidities larger than those currently probed by collider experiments.

17 pages, LaTeX, 4 ps figures, tightenlines, sections added, final version accepted for publication in Phys. Rev. D

References in corpus (3)

• Quarkonium Production at High-Energy Colliders
• Heavy Quark Production at High Energy
• The Sources of b-Quarks at the Tevatron and their Correlations

Cited by in corpus (25)

• The Leading Particle Effect from Heavy-Quark Recombination
• Associated production of $J/\psi$-mesons and open charm and double open charm production at the LHC
• Far-forward production of charm mesons and neutrinos at Forward Physics Facilities at the LHC and the intrinsic charm in the proton
• Which hadronic decay modes are good for ${\eta }_b$ searching: double $J/\psi$ or something else?
• Bridging light-cone and NRQCD approaches: asymptotic behavior of $B_c$ electromagnetic form factor
• Rare and exclusive few-body decays of the Higgs, Z, W bosons, and the top quark
• Observation of a ${\Lambda }_b^0-{\overline{\Lambda }}_b^0$ production asymmetry in proton-proton collisions at $\sqrt{s}=7\text{ and }8\text{TeV}$
• Heavy flavor properties of jets produced in $p\bar{p}$ interactions at $sqrts=$ 1.8 TeV
• Lambda_c^+/Lambda_c^- and Lambda_b^0/\bar{Lambda}_b^0 production asymmetry at the LHC from heavy quark recombination
• Lambda_c^+/Lambda_c^- Asymmetry in Hadroproduction from Heavy-Quark Recombination
• Influence of Heavy Quark Recombination on the Nucleon Strangeness Asymmetry
• A factorization theorem connecting the light-cone distribution amplitudes of heavy-flavor mesons in QCD and HQET
• Observation of the suppressed ${\Lambda }_b^0\to Dp{K}^{-}$ decay with $D\to K^{+}{\pi }^{-}$ and measurement of its $CP$ asymmetry
• A QCD Analysis of Quark Recombination for Leading Particle Effect
• D^\pm Production Asymmetry at the LHC from Heavy-Quark Recombination
• $W$ radiative decay to heavy-light mesons in HQET factorization through $\mathcal{O}({\alpha }_s)$
• Forward charm-production models and prompt neutrinos at IceCube
• Productions of Heavy Flavored Mesons in Relativistic Heavy Ion Collisions in the Recombination Model
• Rare two-body decays of the top quark into a bottom meson plus an up or charm quark
• Ds+ -- Ds- Asymmetry in Photoproduction
• Semileptonic $W$ Decay to the $B$ Meson with Lepton Pairs in Heavy Quark Effective Theory Factorization upto $\mathcal{O}$$({\alpha }_s)$
• The influence of direct $D$-meson production to the determination on the nucleon strangeness asymmetry via dimuon events in neutrino experiments
• $D^{\ast }$ meson production in jet from combination of charm quark with light one
• The Forward Physics Facility at the High-Luminosity LHC
• $D_s$ Asymmetry in Photoproduction