Results 41 to 50 of about 17,573 (205)
Matching NLO QCD computations with parton shower simulations: the POWHEG method
Journal of High Energy Physics, 2007 The aim of this work is to describe in detail the POWHEG method, first suggested by one of the authors, for interfacing parton-shower generators with NLO QCD computations. We describe the method in its full generality, and then specify its features in two subtraction frameworks for NLO calculations: the Catani-Seymour and the Frixione-Kunszt-Signer ...
Frixione, S, Nason, P, OLEARI, CARLO
openaire +2 more sources
NLO QCD+EW predictions for HV and HV +jet production including parton-shower effects
Journal of High Energy Physics, 2017 We present the first NLO QCD+EW predictions for Higgs boson production in association with a ℓν ℓ or ℓ + ℓ − pair plus zero or one jets at the LHC. Fixed-order NLO QCD+EW calculations are combined with a QCD+QED parton shower using the recently developed
F. Granata +3 more
doaj +1 more source
Gluon fragmentation into quarkonium at next-to-leading order using FKS subtraction
Journal of High Energy Physics, 2019 We present the calculation at next-to-leading order (NLO) in α s of the fragmentation function of a gluon into heavy quarkonium in the color-octet spin-singlet S-wave channel.
Pierre Artoisenet, Eric Braaten
doaj +1 more source
Diphoton production in vector-boson scattering at the LHC at next-to-leading order QCD
Journal of High Energy Physics, 2020 In this paper, we present results at next-to-leading order (NLO) QCD for photon pair production in association with two jets via vector boson scattering within the Standard Model (SM), and also in an effective field theory framework with anomalous gauge ...
Francisco Campanario +3 more
doaj +1 more source
Next-to-leading order electroweak corrections to off-shell WWW production at the LHC
Journal of High Energy Physics, 2018 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.
Marek Schönherr
doaj +1 more source
Four-lepton production at hadron colliders: aMC@NLO predictions with theoretical uncertainties [PDF]
, 2011 We use aMC@NLO to study the production of four charged leptons at the LHC, performing parton showers with both HERWIG and Pythia6. Our underlying matrix element calculation features the full next-to-leading order $O(\alpha_S)$ result and the $O(\alpha_S ...
A Martin +33 more
core +3 more sources
Journal of High Energy Physics, 2018 We present the analytic calculation of the Master Integrals necessary to compute the planar massive QCD corrections to Di-photon (and Di-jet) production at hadron colliders. The master integrals are evaluated by means of the differential equations method
Matteo Becchetti, Roberto Bonciani
doaj +1 more source
, 2010 I review recent developments in POWHEG, a method for interfacing parton-shower generators with NLO QCD computations. I illustrate recent progress in understanding several features of the method, and in clarifying similarity and differences with respect ...
Nason, P.
core +1 more source
, 2002 I review recent results in QCD at high energy, emphasizing the role of higher-order computations, power corrections, and Monte Carlo simulations in the study of a few discrepancies between data and perturbative predictions, and discussing future ...
Frixione, S.
core +3 more sources
R2 vertices for the effective ggH theory
, 2013 We list all possible R2 Feynman rules needed in NLO computations involving couplings of Higgs and gluons mediated by an infinitely heavy top loop. They provide the rational contribution generated by the (d-4)-dimensional part of the amplitude, paving the
Page, Ben, Pittau, Roberto
core +1 more source