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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 543012.0, MPI für Physik / MPI für Physik
Electroweak corrections to large transverse momentum production of W bosons at the LHC
Authors:Kuhn, Johann H.; Kulesza, A.; Pozzorini, S.; Schulze, M.
Date of Publication (YYYY-MM-DD):2007
Title of Journal:Physics Letters B
Journal Abbrev.:Phys.Lett.B
Issue / Number:651
Start Page:160
End Page:165
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:To match the precision of present and future measurements of W-boson production at hadron colliders, electroweak radiative corrections must be included in the theory predictions. In this paper we consider their effect on the transverse momentum (p_T) distribution of W bosons, with emphasis on large p_T. We evaluate the full electroweak O(\alpha) corrections to the process pp -> Wj including virtual and real photonic contributions. We also provide compact approximate expressions which are valid in the high-energy region, where the electroweak corrections are strongly enhanced by logarithms of \hat{s}/M_W^2. These expressions include quadratic and single logarithms at one loop as well as quartic and triple logarithms at two loops. Numerical results are presented for proton-proton collisions at 14 TeV. The corrections are negative and their size increases with p_T. At the LHC, where transverse momenta of 2 TeV or more can be reached, the one- and two-loop corrections amount up to -40% and +10%, respectively.
Classification / Thesaurus:Phenomenology of High Energy Physics
Comment of the Author/Creator:11 pages, 3 figures
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2007-35
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/hep-ph/0703283
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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