Abstract
We consider the effect of next-to-leading order (NLO) electroweak corrections to Standard Model 2 → 2 processes, taking into account the potentially large double logarithms originating from both real and virtual corrections. A study of the leading Sudakov logarithms is presented and Bloch-Nordsieck (BN) violations are discussed for processes at the CERN Large Hadron Collider. In particular, we focus on the processes Z/γ+jet and also the ratio of Z to γ production. This ratio is known to be insensitive to NLO QCD corrections but this is not expected to be the case for the electroweak corrections. We also comment on the effect of electroweak corrections and the presence of BN violation for QCD processes, in particular dijet production, and also for purely electroweak processes such as W + H and W + Z associated production.
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References
J.H. Kuhn, A. Kulesza, S. Pozzorini and M. Schulze, Logarithmic electroweak corrections to hadronic Z+1 jet production at large transverse momentum, Phys. Lett. B 609 (2005) 277 [hep-ph/0408308] [INSPIRE].
J.H. Kuhn, A. Kulesza, S. Pozzorini and M. Schulze, One-loop weak corrections to hadronic production of Z bosons at large transverse momenta, Nucl. Phys. B 727 (2005) 368 [hep-ph/0507178] [INSPIRE].
J.H. Kuhn, A. Kulesza, S. Pozzorini and M. Schulze, Electroweak corrections to hadronic photon production at large transverse momenta, JHEP 03 (2006) 059 [hep-ph/0508253] [INSPIRE].
A. Denner, S. Dittmaier, T. Kasprzik and A. Muck, Electroweak corrections to dilepton + jet production at hadron colliders, JHEP 06 (2011) 069 [arXiv:1103.0914] [INSPIRE].
S. Moretti, M.R. Nolten and D.A. Ross, Weak corrections to four-parton processes, Nucl. Phys. B 759 (2006) 50 [hep-ph/0606201] [INSPIRE].
S. Moretti, M.R. Nolten and D.A. Ross, Weak corrections to gluon-induced top-antitop hadro-production, Phys. Lett. B 639 (2006) 513 [Erratum ibid. B 660 (2008) 607] [hep-ph/0603083] [INSPIRE].
J.H. Kuhn, A. Scharf and P. Uwer, Electroweak corrections to top-quark pair production in quark-antiquark annihilation, Eur. Phys. J. C 45 (2006) 139 [hep-ph/0508092] [INSPIRE].
J.H. Kuhn, A. Scharf and P. Uwer, Weak effects in b-jet production at hadron colliders, Phys. Rev. D 82 (2010) 013007 [arXiv:0909.0059] [INSPIRE].
M. Ciafaloni, P. Ciafaloni and D. Comelli, Bloch-Nordsieck violating electroweak corrections to inclusive TeV scale hard processes, Phys. Rev. Lett. 84 (2000) 4810 [hep-ph/0001142] [INSPIRE].
M. Ciafaloni, P. Ciafaloni and D. Comelli, Electroweak Bloch-Nordsieck violation at the TeV scale: ‘strong’ weak interactions?, Nucl. Phys. B 589 (2000) 359 [hep-ph/0004071] [INSPIRE].
M. Ciafaloni, P. Ciafaloni and D. Comelli, Electroweak double logarithms in inclusive observables for a generic initial state, Phys. Lett. B 501 (2001) 216 [hep-ph/0007096] [INSPIRE].
M. Ciafaloni, P. Ciafaloni and D. Comelli, Bloch-Nordsieck violation in spontaneously broken Abelian theories, Phys. Rev. Lett. 87 (2001) 211802 [hep-ph/0103315] [INSPIRE].
U. Baur, Weak boson emission in hadron collider processes, Phys. Rev. D 75 (2007) 013005 [hep-ph/0611241] [INSPIRE].
G. Bell, J.H. Kuhn and J. Rittinger, Electroweak Sudakov logarithms and real gauge-boson radiation in the TeV region, Eur. Phys. J. C 70 (2010) 659 [arXiv:1004.4117] [INSPIRE].
A. Denner and S. Pozzorini, One loop leading logarithms in electroweak radiative corrections. 1. Results, Eur. Phys. J. C 18 (2001) 461 [hep-ph/0010201] [INSPIRE].
A.D. Martin, W.J. Stirling, R.S. Thorne and G. Watt, Parton distributions for the LHC, Eur. Phys. J. C 63 (2009) 189 [arXiv:0901.0002] [INSPIRE].
J. Campbell, K. Ellis and C. Williams, MCFM — Monte Carlo for FeMtobarn processes, http://mcfm.fnal.gov/.
S. Ask, M.A. Parker, T. Sandoval, M.E. Shea and W.J. Stirling, Using γ+jets production to calibrate the standard model Z(\( \to \nu \overline{\nu} \))+jets background to new physics processes at the LHC, JHEP 10 (2011) 058 [arXiv:1107.2803] [INSPIRE].
A. Scharf, Electroweak corrections to b-jet and di-jet production, arXiv:0910.0223 [INSPIRE].
S. Dittmaier, A. Huss and C. Speckner, Weak radiative corrections to dijet production at hadron colliders, JHEP 11 (2012) 095 [arXiv:1210.0438] [INSPIRE].
P. Ciafaloni and D. Comelli, The importance of weak bosons emission at LHC, JHEP 09 (2006) 055 [hep-ph/0604070] [INSPIRE].
E. Accomando, A. Denner and S. Pozzorini, Electroweak correction effects in gauge boson pair production at the CERN LHC, Phys. Rev. D 65 (2002) 073003 [hep-ph/0110114] [INSPIRE].
M.L. Ciccolini, S. Dittmaier and M. Krämer, Electroweak radiative corrections to associated WH and ZH production at hadron colliders, Phys. Rev. D 68 (2003) 073003 [hep-ph/0306234] [INSPIRE].
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ArXiv ePrint: 1212.6537
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Stirling, W.J., Vryonidou, E. Electroweak corrections and Bloch-Nordsieck violations in 2-to-2 processes at the LHC. J. High Energ. Phys. 2013, 155 (2013). https://doi.org/10.1007/JHEP04(2013)155
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DOI: https://doi.org/10.1007/JHEP04(2013)155