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Title: Electroweak corrections and anomalous triple gauge-boson couplings in W{sup +}W{sup -} and W{sup {+-}}Z production at the CERN LHC

Abstract

We have analyzed the production of WZ and WW vector-boson pairs at the LHC. These processes give rise to four-fermion final states, and are particularly sensitive to possible nonstandard trilinear gauge-boson couplings. We have studied the interplay between the influence of these anomalous couplings and the effect of the complete logarithmic electroweak O({alpha}) corrections. Radiative corrections to the standard model processes in double-pole approximation and nonstandard terms due to trilinear couplings are implemented into a Monte Carlo program for pp{yields}4f(+{gamma}) with final states involving four or two charged leptons. We numerically investigate purely leptonic final states and find that electroweak corrections can fake new-physics signals, modifying the observables by the same amount and shape, in kinematical regions of statistical significance.

Authors:
 [1];  [2];  [3]
  1. Dipartimento di Fisica Teorica, Universita di Torino, Via P. Giuria 1, 10125 Turin (Italy)
  2. Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)
  3. (Switzerland)
Publication Date:
OSTI Identifier:
20782972
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.73.093006; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; APPROXIMATIONS; CERN LHC; INCLUSIVE INTERACTIONS; LEPTONS; MONTE CARLO METHOD; PARTICLE PRODUCTION; PHOTONS; PROTON-PROTON INTERACTIONS; RADIATIVE CORRECTIONS; STANDARD MODEL; W MINUS BOSONS; W PLUS BOSONS; Z NEUTRAL BOSONS

Citation Formats

Accomando, E., Kaiser, A., and Institute of Theoretical Physics, University of Zuerich, CH-8057 Zurich. Electroweak corrections and anomalous triple gauge-boson couplings in W{sup +}W{sup -} and W{sup {+-}}Z production at the CERN LHC. United States: N. p., 2006. Web. doi:10.1103/PHYSREVD.73.093006.
Accomando, E., Kaiser, A., & Institute of Theoretical Physics, University of Zuerich, CH-8057 Zurich. Electroweak corrections and anomalous triple gauge-boson couplings in W{sup +}W{sup -} and W{sup {+-}}Z production at the CERN LHC. United States. doi:10.1103/PHYSREVD.73.093006.
Accomando, E., Kaiser, A., and Institute of Theoretical Physics, University of Zuerich, CH-8057 Zurich. Mon . "Electroweak corrections and anomalous triple gauge-boson couplings in W{sup +}W{sup -} and W{sup {+-}}Z production at the CERN LHC". United States. doi:10.1103/PHYSREVD.73.093006.
@article{osti_20782972,
title = {Electroweak corrections and anomalous triple gauge-boson couplings in W{sup +}W{sup -} and W{sup {+-}}Z production at the CERN LHC},
author = {Accomando, E. and Kaiser, A. and Institute of Theoretical Physics, University of Zuerich, CH-8057 Zurich},
abstractNote = {We have analyzed the production of WZ and WW vector-boson pairs at the LHC. These processes give rise to four-fermion final states, and are particularly sensitive to possible nonstandard trilinear gauge-boson couplings. We have studied the interplay between the influence of these anomalous couplings and the effect of the complete logarithmic electroweak O({alpha}) corrections. Radiative corrections to the standard model processes in double-pole approximation and nonstandard terms due to trilinear couplings are implemented into a Monte Carlo program for pp{yields}4f(+{gamma}) with final states involving four or two charged leptons. We numerically investigate purely leptonic final states and find that electroweak corrections can fake new-physics signals, modifying the observables by the same amount and shape, in kinematical regions of statistical significance.},
doi = {10.1103/PHYSREVD.73.093006},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 73,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2006},
month = {Mon May 01 00:00:00 EDT 2006}
}