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Related papers: Resonant leptoquark at NLO with POWHEG

200 papers

We detail a calculation of W gamma production in hadronic collision, at Next-to-Leading Order (NLO) QCD interfaced to a shower generator according to the POWHEG prescription supplemented with the MiNLO procedure. The fixed order result is…

High Energy Physics - Phenomenology · Physics 2015-06-22 Luca Barze , Mauro Chiesa , Guido Montagna , Paolo Nason , Oreste Nicrosini , Fulvio Piccinini , Valeria Prosperi

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…

High Energy Physics - Phenomenology · Physics 2015-05-30 Rikkert Frederix , Stefano Frixione , Valentin Hirschi , Fabio Maltoni , Roberto Pittau , Paolo Torrielli

We present the calculation of the NLO QCD corrections to the electroweak production of top-antitop pairs at the CERN LHC in the presence of a new neutral gauge boson. The corrections are implemented in the parton shower Monte Carlo program…

High Energy Physics - Phenomenology · Physics 2016-03-23 R. Bonciani , T. Jezo , M. Klasen , F. Lyonnet , I. Schienbein

We study combined leptoquark (LQ) single and pair production at LHC at the level of detector simulation. A set of kinematical cuts has been worked out to maximize significance for combined signal events. It was shown that combination of…

High Energy Physics - Phenomenology · Physics 2009-11-11 Alexander Belyaev , Claude Leroy , Rashid Mehdiyev , Alexander Pukhov

We present an implementation of $WZjj$ production via vector-boson fusion in the POWHEG BOX, a public tool for the matching of next-to-leading order QCD calculations with multi-purpose parton-shower generators. We provide phenomenological…

High Energy Physics - Phenomenology · Physics 2019-04-12 Barbara Jager , Alexander Karlberg , Johannes Scheller

The PowHel framework allows to make predictions of total and differential cross-sections of multiparticle hadroproduction processes at both NLO QCD accuracy and NLO QCD matched to Parton Shower, on the basis of the interface between the…

High Energy Physics - Phenomenology · Physics 2013-08-13 M. V. Garzelli , A. Kardos , C. G. Papadopoulos , Z. Trocsanyi

We present a new event generator for the simulation of both neutral- and charged-current deep inelastic scattering (DIS) at next-to-leading order in QCD matched to parton showers using the POWHEG method. Our implementation builds on the…

High Energy Physics - Phenomenology · Physics 2024-02-09 Andrea Banfi , Silvia Ferrario Ravasio , Barbara Jäger , Alexander Karlberg , Felix Reichenbach , Giulia Zanderighi

We analyze the signatures of new physics scenarios featuring third-family quark-lepton unification at the TeV scale in lepton-quark fusion at hadron colliders. Working with complete UV dynamics based on the $SU(4)$ gauge symmetry in the…

High Energy Physics - Phenomenology · Physics 2024-06-04 Arman Korajac , Peter Krack , Nudzeim Selimovic

We present a next-to-leading-order calculation of W/Z production interfaced to shower Monte Carlo, implemented according to the POWHEG method. Finite width effects, Z/gamma interference and angular correlations of decay products are…

High Energy Physics - Phenomenology · Physics 2008-11-26 Simone Alioli , Paolo Nason , Carlo Oleari , Emanuele Re

In this article we describe simulations of Higgs boson production via the gluon fusion and Higgs-strahlung processes, using the positive weight next-to-leading-order (NLO) matching scheme, POWHEG, in the Herwig++ 2.3 event generator. This…

High Energy Physics - Phenomenology · Physics 2009-05-20 Keith Hamilton , Peter Richardson , Jon Tully

We present the implementation of electroweak Zjj and Wjj production via vector boson fusion with fully leptonic decays at NLO QCD in the POWHEG framework. These processes represent an important background to Higgs searches in vector boson…

High Energy Physics - Phenomenology · Physics 2013-04-12 Franziska Schissler , Dieter Zeppenfeld

We review the key features of POWHEG, a method for interfacing parton-shower Monte Carlo generators to fixed next-to-leading order QCD computations. We describe a recently introduced framework, the POWHEG-BOX, that allows the automatic…

High Energy Physics - Phenomenology · Physics 2010-12-13 Carlo Oleari

In this paper we deal with radiation from heavy quarks in the context of next-to-leading order calculations matched to parton shower generators. A new algorithm for radiation from massive quarks is presented that has considerable advantages…

High Energy Physics - Phenomenology · Physics 2018-04-04 L. Buonocore , P. Nason , F. Tramontano

Leptoquarks arise naturally in models attempting the unification of the quark and lepton sectors of the standard model of particle physics. Such particles could be produced in the interaction of high energy quasi-horizontal cosmic neutrinos…

High Energy Physics - Phenomenology · Physics 2009-11-11 M. C. Espirito Santo , A. Onofre , M. Paulos , M. Pimenta , J. C. Romao , B. Tome

We simulate the hadroproduction of a t anti-t pair in association with a hard photon at LHC using the PowHel package. These events are almost fully inclusive with respect to the photon, allowing for any physically relevant isolation of the…

High Energy Physics - Phenomenology · Physics 2015-05-12 Adam Kardos , Zoltán Trócsányi

The prospects for producing leptoquarks (LQs) in ultrahigh-energy (UHE) neutrino nucleon collisions are re-examined in the light of recent interpretations of HERA data in terms of leptoquark production. We update predictions for…

High Energy Physics - Phenomenology · Physics 2016-09-06 M. A. Doncheski , R. W. Robinett

We present an implementation of electroweak W+W-jj production at hadron colliders in the POWHEG framework, a method that allows the interfacing of a next-to-leading order QCD calculation with parton shower Monte Carlo programs. We provide…

High Energy Physics - Phenomenology · Physics 2015-06-12 Barbara Jager , Giulia Zanderighi

We present a next-to-leading order calculation of Higgs boson production in vector-boson fusion processes interfaced to shower Monte Carlo programs, implemented according to the POWHEG method.

High Energy Physics - Phenomenology · Physics 2010-05-28 Paolo Nason , Carlo Oleari

The new methodology of adding QCD NLO corrections in the initial state Monte Carlo parton shower (hard process part) is presented using process of the heavy boson production at the LHC as an example. Despite the simplified model of the…

High Energy Physics - Phenomenology · Physics 2012-10-31 S. Jadach , A. Kusina , M. Skrzypek , M. Slawinska

The lepton pair production in collisions of antiproton beam (E_beam = 14 GeV) with proton target is studied on the basis of event samples simulated with PYTHIA6 generator. Two types of quark level subprocesses are considered. The first one…

High Energy Physics - Phenomenology · Physics 2011-03-09 A. N. Skachkova , N. B. Skachkov , G. D. Alexeev