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Scientific article
Open access
English

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

ContributorsATLAS Collaboration
Published inNuclear physics. B, vol. 907, p. 717-763
Collection
  • Open Access - SCOAP3
Publication date2016
Abstract

The production of D⁎± , D± and Ds± 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<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.

Citation (ISO format)
ATLAS Collaboration. Measurement of D ⁎± , D ± and Ds± meson production cross sections in pp collisions at √s = 7 TeV with the ATLAS detector. In: Nuclear physics. B, 2016, vol. 907, p. 717–763. doi: 10.1016/j.nuclphysb.2016.04.032
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Article (Published version)
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ISSN of the journal0550-3213
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