Loading…

Large-pT production of D mesons at the LHCb in the parton Reggeization approach

The production of D mesons in proton-proton collisions at the LHCb detector is studied. We consider the single production of D0/D¯0, D±, D*±, and Ds± mesons and correlation spectra in the production of DD¯ and DD pairs at the S=7  TeV and S=13  TeV. In case of the single D-meson production we calcul...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. D 2016-12, Vol.94 (11)
Main Authors: Karpishkov, A V, Saleev, V A, Shipilova, A V
Format: Article
Language:English
Subjects:
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The production of D mesons in proton-proton collisions at the LHCb detector is studied. We consider the single production of D0/D¯0, D±, D*±, and Ds± mesons and correlation spectra in the production of DD¯ and DD pairs at the S=7  TeV and S=13  TeV. In case of the single D-meson production we calculate differential cross sections over transverse momentum pT while in the pair DD¯, DD-meson production the cross sections are calculated over the azimuthal angle difference Δφ, rapidity difference Δy, invariant mass of the pair M and over the pT of the one meson from a pair. The cross sections are obtained at the leading order of the parton Reggeization approach using Kimber-Martin-Ryskin unintegrated parton distribution functions in a proton. To describe the D-meson production we use universal scale-dependent c-quark and gluon fragmentation functions fitted to e+e− annihilation data from CERN LEP1. Our predictions find a good agreement with the LHCb Collaboration data within uncertainties and without free parameters.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.94.114012