Measurement of D[superscript *±] meson production in jets from pp collisions at √s=7 TeV with the ATLAS detector
Author(s)
Taylor, Frank E.
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Alternative title
Measurement of D*± meson production in jets from pp collisions at √s=7 TeV with the ATLAS detector
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This paper reports a measurement of D[superscript *±] meson production in jets from proton-proton collisions at a center-of-mass energy of √s=7 TeV at the CERN Large Hadron Collider. The measurement is based on a data sample recorded with the ATLAS detector with an integrated luminosity of 0.30 pb[superscript -1] for jets with transverse momentum between 25 and 70 GeV in the pseudorapidity range |η|<2.5. D[superscript *±] mesons found in jets are fully reconstructed in the decay chain: D[superscript *+]→D[superscript 0]π[superscript +], D[superscript 0]→K[superscript -]π[superscript +], and its charge conjugate. The production rate is found to be N(D[superscript *±])/N(jet)=0.025±0.001(stat.)±0.004(syst.) for D[superscript *±] mesons that carry a fraction z of the jet momentum in the range 0.3<z<1. Monte Carlo predictions fail to describe the data at small values of z, and this is most marked at low jet transverse momentum.
Date issued
2012-03Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Physical Review D
Publisher
American Physical Society
Citation
Aad, G. et al. “Measurement of D^{*±} Meson Production in Jets from Pp Collisions at Sqrt[s]=7 TeV with the ATLAS Detector.” Physical Review D 85.5 (2012): Web. 20 Apr. 2012. © 2012 CERN
Version: Final published version
ISSN
1550-7998
1089-4918