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

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, R. Aben, M. Abolins, O. S. AbouZeid, H. Abramowicz, H. Abreu, R. Abreu, Y. Abulaiti, B. S. Acharya, L. Adamczyk, D. L. Adams, J. Adelman, S. Adomeit, T. Adye, A. A. Affolder, T. Agatonovic-Jovin, J. A. Aguilar-SaavedraS. P. Ahlen, F. Ahmadov, G. Aielli, H. Akerstedt, T. P.A. Åkesson, G. Akimoto, A. V. Akimov, G. L. Alberghi, J. Albert, S. Albrand, M. J. Alconada Verzini, M. Aleksa, I. N. Aleksandrov, C. Alexa, G. Alexander, T. Alexopoulos, M. Alhroob, G. Alimonti, L. Alio, J. Alison, S. P. Alkire, B. M.M. Allbrooke, P. P. Allport, A. Aloisio, A. Alonso, E. Cheu, K. A. Johns, J. P. Rutherfoord, M. A. Shupe, E. W. Varnes, ATLAS Collaboration

Research output: Contribution to journalArticle

38 Scopus citations

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<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.

Original languageEnglish (US)
Pages (from-to)717-763
Number of pages47
JournalNuclear Physics B
Volume907
DOIs
StatePublished - Jun 1 2016

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Measurement of D*<sup>±</sup>, D<sup>±</sup> and D<sub>s</sub><sup>±</sup> meson production cross sections in pp collisions at s√=7 TeV with the ATLAS detector'. Together they form a unique fingerprint.

Cite this