Measurement of $D^*±$, $D^±$ and $D_s^±$ meson production cross sections in $pp$ collisions at $\\sqrts=7$ TeV with the ATLAS detector
Journal
Nuclear Physics
Journal Volume
B907
Pages
717-763
Date Issued
2016
Author(s)
Aad, Georges et al. (The ATLAS Collaboration)
Abstract
The production of D_±, D±and D±scharmed mesons has been measured with the ATLAS detector in ppcollisions at ís=7TeVat the LHC, using data corresponding to an integrated luminosity of 280nb_1. The charmed mesons have been reconstructed in the range of transverse momentum 3.5 <pT(D) <100GeVand pseudorapidity |_(D)| <2.1. The differential cross sections as a function of transverse momentum and pseudorapidity were measured for D_±and D±production. The next-to-leading-order QCD predictions are consistent with the data in the visible kinematic region within the large theoretical uncertainties. Using the visible Dcross sections and an extrapolation to the full kinematic phase space, the strangeness-suppression factor in charm fragmentation, the fraction of charged non-strange Dmesons produced in a vector state, and the total cross section of charm production at ís=7TeVwere derived.©2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
Type
journal article