Abstract
Triboson processes allow for a measurement of the triple and quartic couplings of the Standard Model gauge bosons, which can be used to constrain anomalous gauge couplings. In this paper we calculate the next-to-leading order electroweak corrections to fully off-shell W −W +W + production, namely the production of a \( {\ell}_1^{-}{\ell}_2^{+}{\ell}_3^{+}{\overline{\nu}}_{\ell_1}{\nu}_{\ell_2}{\nu}_{\ell_3} \) final state with (ℓi = e, μ), including all triple, double, single and non resonant topologies and interferences of diagrams with all different vector boson (W, Z, γ) intermediate states. We find large cancellations of the electroweak correction to the \( q\overline{q} \)-induced channel, which includes the exchange of virtual electroweak gauge bosons, and photon-induced jet radiation processes. This accidental compensation is found to be strongly phase space and observable dependent. The resulting corrections in a suitably defined fiducial region thus amount to −2.0%, but rise rapidly for other observables.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
ATLAS collaboration, Search for triboson W ± W ± W ∓ production in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, Eur. Phys. J. C 77 (2017) 141 [arXiv:1610.05088] [INSPIRE].
A. Lazopoulos, K. Melnikov and F. Petriello, QCD corrections to tri-boson production, Phys. Rev. D 76 (2007) 014001 [hep-ph/0703273] [INSPIRE].
T. Binoth, G. Ossola, C.G. Papadopoulos and R. Pittau, NLO QCD corrections to tri-boson production, JHEP 06 (2008) 082 [arXiv:0804.0350] [INSPIRE].
F. Campanario, V. Hankele, C. Oleari, S. Prestel and D. Zeppenfeld, QCD corrections to charged triple vector boson production with leptonic decay, Phys. Rev. D 78 (2008) 094012 [arXiv:0809.0790] [INSPIRE].
Y.-B. Shen et al., NLO QCD + NLO EW corrections to W ZZ productions with leptonic decays at the LHC, JHEP 10 (2015) 186 [Erratum ibid. 10 (2016) 156] [arXiv:1507.03693] [INSPIRE].
Y.-B. Shen et al., NLO QCD and electroweak corrections to WWW production at the LHC, Phys. Rev. D 95 (2017) 073005 [arXiv:1605.00554] [INSPIRE].
S. Dittmaier, A. Huss and G. Knippen, Next-to-leading-order QCD and electroweak corrections to WWW production at proton-proton colliders, JHEP 09 (2017) 034 [arXiv:1705.03722] [INSPIRE].
R. Frederix et al., The automation of next-to-leading order electroweak calculations, arXiv:1804.10017 [INSPIRE].
S. Hoeche et al., Triple vector boson production through Higgs-Strahlung with NLO multijet merging, Phys. Rev. D 89 (2014) 093015 [arXiv:1403.7516] [INSPIRE].
T. Gleisberg et al., Event generation with SHERPA 1.1, JHEP 02 (2009) 007 [arXiv:0811.4622] [INSPIRE].
E. Bothmann, M. Schönherr and S. Schumann, Reweighting QCD matrix-element and parton-shower calculations, Eur. Phys. J. C 76 (2016) 590 [arXiv:1606.08753] [INSPIRE].
S. Actis, A. Denner, L. Hofer, A. Scharf and S. Uccirati, Recursive generation of one-loop amplitudes in the standard model, JHEP 04 (2013) 037 [arXiv:1211.6316] [INSPIRE].
S. Actis et al., RECOLA: REcursive Computation of One-Loop Amplitudes, Comput. Phys. Commun. 214 (2017) 140 [arXiv:1605.01090] [INSPIRE].
F. Krauss, R. Kuhn and G. Soff, AMEGIC++ 1.0: a matrix element generator in C++, JHEP 02 (2002) 044 [hep-ph/0109036] [INSPIRE].
T. Gleisberg and F. Krauss, Automating dipole subtraction for QCD NLO calculations, Eur. Phys. J. C 53 (2008) 501 [arXiv:0709.2881] [INSPIRE].
M. Schönherr, An automated subtraction of NLO EW infrared divergences, Eur. Phys. J. C 78 (2018) 119 [arXiv:1712.07975] [INSPIRE].
S. Kallweit, J.M. Lindert, P. Maierhöfer, S. Pozzorini and M. Schönherr, NLO electroweak automation and precise predictions for W+multijet production at the LHC, JHEP 04 (2015) 012 [arXiv:1412.5157] [INSPIRE].
S. Kallweit et al., NLO QCD+EW predictions for V + jets including off-shell vector-boson decays and multijet merging, JHEP 04 (2016) 021 [arXiv:1511.08692] [INSPIRE].
B. Biedermann et al., Automation of NLO QCD and EW corrections with Sherpa and Recola, Eur. Phys. J. C 77 (2017) 492 [arXiv:1704.05783] [INSPIRE].
S. Kallweit, J.M. Lindert, S. Pozzorini and M. Schönherr, NLO QCD+EW predictions for 2ℓ2ν diboson signatures at the LHC, JHEP 11 (2017) 120 [arXiv:1705.00598] [INSPIRE].
M. Chiesa, N. Greiner, M. Schönherr and F. Tramontano, Electroweak corrections to diphoton plus jets, JHEP 10 (2017) 181 [arXiv:1706.09022] [INSPIRE].
N. Greiner and M. Schönherr, NLO QCD+EW corrections to diphoton production in association with a vector boson, JHEP 01 (2018) 079 [arXiv:1710.11514] [INSPIRE].
C. Gütschow, J.M. Lindert and M. Schönherr, Multi-jet merged top-pair production including electroweak corrections, Eur. Phys. J. C 78 (2018) 317 [arXiv:1803.00950] [INSPIRE].
S. Catani and M.H. Seymour, A general algorithm for calculating jet cross-sections in NLO QCD, Nucl. Phys. B 485 (1997) 291 [Erratum ibid. B 510 (1998) 503] [hep-ph/9605323] [INSPIRE].
S. Dittmaier, A general approach to photon radiation off fermions, Nucl. Phys. B 565 (2000) 69 [hep-ph/9904440] [INSPIRE].
S. Catani, S. Dittmaier, M.H. Seymour and Z. Trócsányi, The dipole formalism for next-to-leading order QCD calculations with massive partons, Nucl. Phys. B 627 (2002) 189 [hep-ph/0201036] [INSPIRE].
S. Dittmaier, A. Kabelschacht and T. Kasprzik, Polarized QED splittings of massive fermions and dipole subtraction for non-collinear-safe observables, Nucl. Phys. B 800 (2008) 146 [arXiv:0802.1405] [INSPIRE].
A. Denner, S. Dittmaier and L. Hofer, Collier: a Fortran-based Complex One-Loop Library In Extended Regularizations, Comput. Phys. Commun. 212 (2017) 220 [arXiv:1604.06792] [INSPIRE].
M. Schonherr and F. Krauss, Soft photon radiation in particle decays in SHERPA, JHEP 12 (2008) 018 [arXiv:0810.5071] [INSPIRE].
A. Denner, S. Dittmaier, M. Roth and L.H. Wieders, Electroweak corrections to charged-current e + e − → 4 fermion processes: Technical details and further results, Nucl. Phys. B 724 (2005) 247 [Erratum ibid. B 854 (2012) 504] [hep-ph/0505042] [INSPIRE].
A. Denner and J.-N. Lang, The complex-mass scheme and unitarity in perturbative quantum field theory, Eur. Phys. J. C 75 (2015) 377 [arXiv:1406.6280] [INSPIRE].
NNPDF collaboration, V. Bertone et al., Illuminating the photon content of the proton within a global PDF analysis, arXiv:1712.07053 [INSPIRE].
A. Manohar, P. Nason, G.P. Salam and G. Zanderighi, How bright is the proton? A precise determination of the photon parton distribution function, Phys. Rev. Lett. 117 (2016) 242002 [arXiv:1607.04266] [INSPIRE].
A.V. Manohar, P. Nason, G.P. Salam and G. Zanderighi, The photon content of the proton, JHEP 12 (2017) 046 [arXiv:1708.01256] [INSPIRE].
A. Buckley et al., LHAPDF6: parton density access in the LHC precision era, Eur. Phys. J. C 75 (2015) 132 [arXiv:1412.7420] [INSPIRE].
A. Buckley et al., Rivet user manual, Comput. Phys. Commun. 184 (2013) 2803 [arXiv:1003.0694] [INSPIRE].
A. Bierweiler, T. Kasprzik and J.H. Kühn, Vector-boson pair production at the LHC to \( \mathcal{O}\left({\alpha}^3\right) \) accuracy, JHEP 12 (2013) 071 [arXiv:1305.5402] [INSPIRE].
Open Access
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Author information
Authors and Affiliations
Corresponding author
Additional information
ArXiv ePrint: 1806.00307
Rights and permissions
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/.
About this article
Cite this article
Schönherr, M. Next-to-leading order electroweak corrections to off-shell WWW production at the LHC. J. High Energ. Phys. 2018, 76 (2018). https://doi.org/10.1007/JHEP07(2018)076
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP07(2018)076