D± Production Asymmetry at the LHC from Heavy-Quark Recombination
Lai, Wai Kin · Leibovich, Adam K. · Petrov, Alexey A.
Original · EN
The asymmetry in the forward region production cross section of D± is calculated using the heavy-quark recombination mechanism for pp collisions at 7 TeV. By suitable choices of four non-perturbative parameters, our calculated results can reproduce those obtained at LHCb. We find Aₚ -1% when integrated over 2.0 GeV < pₜ < 18 GeV and 2.2< eta <4.75, which agrees with Aₚ=-0.96±0.26±0.18% as measured by LHCb. Furthermore, the calculated distributions in eta and pₜ agree reasonably well with those obtained at LHCb.
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