Precise predictions for same-sign W-boson scattering at the LHC

The European Physical Journal. C, Particles and Fields
Alessandro BallestreroDieter Zeppenfeld

Abstract

Vector-boson scattering processes are of great importance for the current run-II and future runs of the Large Hadron Collider. The presence of triple and quartic gauge couplings in the process gives access to the gauge sector of the Standard Model (SM) and possible new-physics contributions there. To test any new-physics hypothesis, sound knowledge of the SM contributions is necessary, with a precision which at least matches the experimental uncertainties of existing and forthcoming measurements. In this article we present a detailed study of the vector-boson scattering process with two positively-charged leptons and missing transverse momentum in the final state. In particular, we first carry out a systematic comparison of the various approximations that are usually performed for this kind of process against the complete calculation, at LO and NLO QCD accuracy. Such a study is performed both in the usual fiducial region used by experimental collaborations and in a more inclusive phase space, where the differences among the various approximations lead to more sizeable effects. Afterwards, we turn to predictions matched to parton showers, at LO and NLO: we show that on the one hand, the inclusion of NLO QCD corrections leads to ...Continue Reading

References

Jun 1, 1996·Physical Review. D·I Kuss, H Spiesberger
May 1, 2012·Physical Review Letters·F CascioliS Pozzorini
Sep 5, 2015·Physical Review Letters·Matteo CacciariGiulia Zanderighi
Jul 15, 2017·Physical Review Letters·Benedikt BiedermannMathieu Pellen
Jan 1, 2017·The European Physical Journal. C, Particles and Fields·J M LindertC Williams

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Citations

Oct 11, 2019·The European Physical Journal. C, Particles and Fields·Mauro ChiesaMathieu Pellen
Jan 15, 2019·The European Physical Journal. C, Particles and Fields·Simon BrassMarco Sekulla
Nov 17, 2020·The European Physical Journal. C, Particles and Fields·Frédéric A DreyerMathieu Pellen

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Binoth Houches Accord interface
MG5
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MadFKS
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MadGraph5
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