On the energy dependence of the D^+/D^- production asymmetry
E.R. Cazaroto, V.P. Goncalves, F.S. Navarra, M. Nielsen
TL;DR
This paper investigates the energy dependence of D meson production asymmetry in high-energy proton-proton collisions, using the meson cloud model to explain recent LHCb data and explore the proton's charm meson cloud role.
Contribution
It applies the meson cloud model to analyze D meson asymmetries and demonstrates good agreement with experimental data, highlighting the charm meson cloud's significance.
Findings
The asymmetry in D^-/D^+ production is small but non-zero.
The meson cloud model successfully explains the energy dependence of the asymmetry.
Results align well with recent LHCb measurements.
Abstract
In this paper we discuss the origin of the asymmetry present in D meson production and its energy dependence. In particular, we have applied the meson cloud model to calculate the asymmetries in D^-/D^+ meson production in high energy p-p collisions and find a good agreement with recent LHCb data. Although small, this non-vanishing asymmetry may shed light on the role played by the charm meson cloud of the proton.
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