Measurement of D∗±, D± and D±s meson production cross sections in pp collisions at 7 TeV with the ATLAS detector

Research output: Contribution to journalArticlepeer-review

Authors

  • ATLAS Collaboration

Colleges, School and Institutes

Abstract

The production of D∗±, D± and D±s charmed mesons has been measured with the ATLAS detector in pp collisions at √s = 7 TeV at the LHC, using data corresponding to an integrated luminosity of 280 nb−1. The charmed mesons have been reconstructed in the range of transverse momentum 3.5 < pT(D) < 100 GeV and pseudorapidity |η(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 D cross sections and an extrapolation to the full kinematic phase space, the strangeness-suppression factor in charm fragmentation, the fraction of charged non-strange D mesons produced in a vector state, and the total cross section of charm production at √s = 7 TeV were derived.

Bibliographic note

27 pages plus author list (43 pages total), 6 figures, 6 tables, published version, all figures and tables are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/BPHY-2013-04/

Details

Original languageEnglish
Pages (from-to)717-763
Number of pages47
JournalNuclear Physics B
Volume907
Early online date25 Apr 2016
Publication statusPublished - 1 Jun 2016

Keywords

  • hep-ex