Measurement of <i>D</i><SUP>*±</SUP>, <i>D</i><SUP>±</SUP> and <i>D<sub>S</sub></i><SUP>±</SUP> meson production cross sections in <i>pp</i> 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 <i>D</i><SUP>*±</SUP>, <i>D</i><SUP>±</SUP> and <i>D<sub>S</sub></i><SUP>±</SUP> meson production cross sections in <i>pp</i> collisions at √s=7 TeV with the ATLAS detector. NUCLEAR PHYSICS B, 907. pp. 717-763.

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Abstract

The production of $D^{*\pm}$, $D^\pm$ and $D_s^\pm$ charmed mesons has been measured with the ATLAS detector in $pp$ collisions at $\sqrt{s}=7$ 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 $3.5<p_{\rm T}(D)<100$ GeV and pseudorapidity $|\eta(D)|<2.1$. The differential cross sections as a function of transverse momentum and pseudorapidity were measured for $D^{*\pm}$ and $D^\pm$ 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 $\sqrt{s}=7$ 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: 05 Oct 2023 11:19
DOI: 10.1016/j.nuclphysb.2016.04.032
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3005943