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Related papers: $W^+W^-$ production at NNLO+PS

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We give a brief overview of our calculation of the next-to-next-to-leading order (NNLO) QCD corrections to Z+jet production in hadronic collisions. Phenomenological results are presented which comprise various differential distributions for…

High Energy Physics - Phenomenology · Physics 2016-07-07 A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , A. Huss , T. A. Morgan

We give a prescription for attaching parton showers to next-to-leading order (NLO) partonic jet cross sections in electron-positron annihilation. Our method effectively extends to NLO the scheme of Catani, Krauss, Kuhn, and Webber for…

High Energy Physics - Phenomenology · Physics 2007-05-23 Zoltan Nagy , Davison E. Soper

This paper describes the MC@NLO method for matching next-to-leading order (NLO) perturbative QCD with the parton shower and hadronization model of the Monte Carlo (MC) event generator tt Herwig++, for e+e- annihilation and Drell-Yan lepton…

High Energy Physics - Phenomenology · Physics 2011-03-23 Oluseyi Latunde-Dada

The production of a top-antitop quark pair in association with a $W$ boson ($t\bar tW$) is one of the heaviest signatures currently probed at the Large Hadron Collider (LHC). Since the first observation reported in 2015 the corresponding…

High Energy Physics - Phenomenology · Physics 2023-12-08 Luca Buonocore , Simone Devoto , Massimiliano Grazzini , Stefan Kallweit , Javier Mazzitelli , Luca Rottoli , Chiara Savoini

Precision studies of QCD at $e^+e^-$ colliders are based on measurements of event shapes and jet rates. To match the high experimental accuracy, theoretical predictions to next-to-next-to-leading order (NNLO) in QCD are needed for a…

High Energy Physics - Phenomenology · Physics 2008-12-30 A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , G. Heinrich

We present a detailed phenomenological study of W-boson production in association with a jet through next-to-next-to-leading order (NNLO) in perturbative QCD. Fiducial cross sections and differential distributions for both 8 TeV and 13 TeV…

High Energy Physics - Phenomenology · Physics 2016-12-28 Radja Boughezal , Xiaohui Liu , Frank Petriello

We calculate the next-to-leading order(NLO) QCD corrections to the $WH^0$ production in association with a jet at hadron colliders. We study the impacts of the complete NLO QCD radiative corrections to the integrated cross sections, the…

High Energy Physics - Phenomenology · Physics 2015-03-17 Su Ji-Juan , Ma Wen-Gan , Zhang Ren-You , Guo Lei

We present a new approach to combine multiple NLO parton-level calculations matched to parton showers into a single inclusive event sample. The method provides a description of hard multi-jet configurations at next-to leading order in the…

High Energy Physics - Phenomenology · Physics 2013-02-14 Thomas Gehrmann , Stefan Hoeche , Frank Krauss , Marek Schonherr , Frank Siegert

We present differential cross sections for the production of top-quark pairs in conjunction with up to two jets, computed at next-to leading order in perturbative QCD and consistently merged with a parton shower in the Sherpa+OpenLoops…

High Energy Physics - Phenomenology · Physics 2015-07-01 Stefan Höche , Frank Krauss , Philipp Maierhoefer , Stefano Pozzorini , Marek Schonherr , Frank Siegert

We report on the calculation of $W^\pm Zjj$ production with leptonic decays at hadron-hadron colliders at next-to-leading order in QCD. These processes are important both to test the quartic gauge couplings of the Standard Model and because…

High Energy Physics - Phenomenology · Physics 2013-08-08 Francisco Campanario , Matthias Kerner , Le Duc Ninh , Dieter Zeppenfeld

We present theoretical predictions for the production of top-quark pairs in association with jets at the LHC including electroweak (EW) corrections. First, we present and compare differential predictions at the fixed-order level for $t \bar…

High Energy Physics - Phenomenology · Physics 2018-05-09 Christian Gütschow , Jonas M. Lindert , Marek Schönherr

We present precise predictions for prompt photon production in association with a $Z$ boson and jets. They are obtained within the Sherpa framework as a consistently merged inclusive sample. Leptonic decays of the $Z$ boson are fully…

High Energy Physics - Phenomenology · Physics 2018-04-04 Johannes Krause , Frank Siegert

In this paper, we present the next-to-leading order QCD corrections for di-lepton, di-electroweak boson (ZZ, W+W-) production in both the SM and the ADD model, matched to the HERWIG parton-shower using the aMC@NLO framework. A selection of…

High Energy Physics - Phenomenology · Physics 2014-02-12 R. Frederix , M. K. Mandal , P. Mathews , V. Ravindran , S. Seth

We study the production of jets in hadronic collisions, by computing all contributions proportional to $\alpha_S^n\alpha^m$, with $n+m=2$ and $n+m=3$. These correspond to leading and next-to-leading order results, respectively, for…

High Energy Physics - Phenomenology · Physics 2017-05-24 Rikkert Frederix , Stefano Frixione , Valentin Hirschi , Davide Pagani , Hua-Sheng Shao , Marco Zaro

We report in this work the production of $W^+W^-$ pairs gauge bosons associated with 0, 1 and 2 jets in proton-proton collisions at LHC with an energy of 14 TeV in the center of mass. These processes are produced at leading-order (LO) and…

High Energy Physics - Phenomenology · Physics 2021-08-18 K. Djamaa , A. Mohamed-Meziani

We consider QCD radiative corrections to $W^+W^-$ production at the LHC and present the first fully differential predictions for this process at next-to-next-to-leading order (NNLO) in perturbation theory. Our computation consistently…

High Energy Physics - Phenomenology · Physics 2016-09-21 Massimiliano Grazzini , Stefan Kallweit , Stefano Pozzorini , Dirk Rathlev , Marius Wiesemann

The pair production of squarks is one of the main search channels for supersymmetry at the LHC. We present a fully differential calculation of the next-to-leading order (NLO) SUSY-QCD corrections to the on-shell production of a pair of…

High Energy Physics - Phenomenology · Physics 2014-02-17 Ryan Gavin , Christian Hangst , Michael Krämer , Margarete Mühlleitner , Mathieu Pellen , Eva Popenda , Michael Spira

Precision tests of the Standard Model (SM) require not only accurate experiments, but also precise and reliable theoretical predictions. Triple vector boson production provides a unique opportunity to investigate the quartic gauge couplings…

High Energy Physics - Phenomenology · Physics 2016-11-08 Shen Yong-Bai , Zhang Ren-You , Ma Wen-Gan , Li Xiao-Zhou , Zhang Yu , Guo Lei

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

Large logarithmic corrections in $\hat s/p_t^2$ lead to substantial variations in the perturbative predictions for inclusive $W$-plus-dijet processes at the Large Hadron Collider. This instability can be cured by summing the…

High Energy Physics - Phenomenology · Physics 2021-04-28 Jeppe R. Andersen , James A. Black , Helen M. Brooks , Emmet P. Byrne , Andreas Maier , Jennifer M. Smillie