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Study of jet shapes in inclusive jet production in pp collisions at [sqrt]s=7  TeV using the ATLAS detector

Author(s)
Taylor, Frank E.
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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.

Alternative title
Study of jet shapes in inclusive jet production in pp collisions at √s=7  TeV using 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
Jet shapes have been measured in inclusive jet production in proton-proton collisions at [sqrt]s=7  TeV using 3  pb-1 of data recorded by the ATLAS experiment at the LHC. Jets are reconstructed using the anti-kt algorithm with transverse momentum 30  GeV<pT<600  GeV and rapidity in the region |gamma|<2.8. The data are corrected for detector effects and compared to several leading-order QCD matrix elements plus parton shower Monte Carlo predictions, including different sets of parameters tuned to model fragmentation processes and underlying event contributions in the final state. The measured jets become narrower with increasing jet transverse momentum and the jet shapes present a moderate jet rapidity dependence. Within QCD, the data test a variety of perturbative and nonperturbative effects. In particular, the data show sensitivity to the details of the parton shower, fragmentation, and underlying event models in the Monte Carlo generators. For an appropriate choice of the parameters used in these models, the data are well described.
Date issued
2011-03
URI
http://hdl.handle.net/1721.1/66104
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review D
Publisher
American Physical Society
Citation
G. Aad et al. (ATLAS Collaboration). "Study of jet shapes in inclusive jet production in pp collisions at [sqrt]s=7  TeV using the ATLAS detector." Phys. Rev. D 83, 052003 (2011) [29 pages].
Version: Final published version
ISSN
1550-7998
1550-2368

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