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Measurement of D-*+/-, D-+/- and D-S(+/-) meson production cross sections in pp collisions at root s=7 TeV with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0003-3867-0336
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 28382016 (English)In: Nuclear Physics B, ISSN 0550-3213, E-ISSN 1873-1562, Vol. 907, p. 717-763Article in journal (Refereed) Published
Abstract [en]

The production of D*(+/-), D-+/- and D-S(+/-) charmed mesons has been measured with the ATLAS detector in pp collisions at,/7s = 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(T)(D) < 100 GeV and pseudorapidity vertical bar eta(D)vertical bar < 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 root s = 7 TeV were derived.

Place, publisher, year, edition, pages
2016. Vol. 907, p. 717-763
Keywords [en]
QUARK FRAGMENTATION FUNCTION; DEEP-INELASTIC SCATTERING; HADRON-PRODUCTION; E(+)E(-) COLLISIONS; JET FRAGMENTATION; HERA; ANNIHILATION; CHARM; MODEL; FRACTIONS
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-189153DOI: 10.1016/j.nuclphysb.2016.04.032ISI: 000376818000030Scopus ID: 2-s2.0-84966309061OAI: oai:DiVA.org:kth-189153DiVA, id: diva2:943612
Funder
Knut and Alice Wallenberg Foundation
Note

QC 20160628

Available from: 2016-06-28 Created: 2016-06-28 Last updated: 2018-05-17Bibliographically approved

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Lund-Jensen, BengtMorley, AnthonyStrandberg, Jonas

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