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



Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Aben, R, Abolins, M, AbouZeid, OS, Abramowicz, H, Abreu, H, Abreu, R
et al (show 2828 more authors) (2016) Measurement of D*±, D± and DS± meson production cross sections in pp collisions at √s=7 TeV with the ATLAS detector NUCLEAR PHYSICS B, 907. pp. 717-763. ISSN 0550-3213, 1873-1562

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Abstract

The production of D<sup>⁎±</sup>, D<sup>±</sup> and D<inf>s</inf> <sup>±</sup> 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<sup>−1</sup>. The charmed mesons have been reconstructed in the range of transverse momentum 3.5<p<inf>T</inf>(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<sup>⁎±</sup> and D<sup>±</sup> 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.

Item Type: Article
Additional Information: 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/
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 21 Feb 2017 14:41
Last Modified: 24 Jun 2026 16:47
DOI: 10.1016/j.nuclphysb.2016.04.032
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3005943
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