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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
Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
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
2012-03
URI
http://hdl.handle.net/1721.1/70092
Department
Massachusetts Institute of Technology. Department of Physics
Journal
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

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