D^\pm Production Asymmetry at the LHC from Heavy-Quark Recombination
High Energy Physics - Phenomenology
2014-10-01 v1 High Energy Physics - Experiment
Abstract
The asymmetry in the forward region production cross section of D^\pm 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 A_p ~ -1% when integrated over 2.0 GeV < p_T < 18 GeV and 2.2< eta <4.75, which agrees with A_p=-0.96\pm0.26\pm0.18% as measured by LHCb. Furthermore, the calculated distributions in eta and p_T agree reasonably well with those obtained at LHCb.
Keywords
Cite
@article{arxiv.1408.2843,
title = {D^\pm Production Asymmetry at the LHC from Heavy-Quark Recombination},
author = {Wai Kin Lai and Adam K. Leibovich and Alexey A. Petrov},
journal= {arXiv preprint arXiv:1408.2843},
year = {2014}
}
Comments
8 pages, 4 figures