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We present results of a computation of NLO QCD corrections to the production of an off-shell top--antitop pair in association with an off-shell $\text{W}^+$ boson in proton--proton collisions. As the calculation is based on the full matrix…

High Energy Physics - Phenomenology · Physics 2021-05-21 Ansgar Denner , Giovanni Pelliccioli

We report on the first fully differential calculation for $W^\pm Z$ production in hadron collisions up to next-to-next-to-leading order (NNLO) in QCD perturbation theory. Leptonic decays of the $W$ and $Z$ bosons are consistently taken into…

High Energy Physics - Phenomenology · Physics 2017-09-13 Massimiliano Grazzini , Stefan Kallweit , Dirk Rathlev , Marius Wiesemann

We report on the first calculation of next-to-next-to-leading order (NNLO) QCD corrections to the inclusive production of ZZ pairs at hadron colliders. Numerical results are presented for pp collisions with centre-of-mass energy…

High Energy Physics - Phenomenology · Physics 2015-06-19 F. Cascioli , T. Gehrmann , M. Grazzini , S. Kallweit , P. Maierhöfer , A. von Manteuffel , S. Pozzorini , D. Rathlev , L. Tancredi , E. Weihs

We consider the production of $W\gamma$ and $Z\gamma$ pairs at hadron colliders. We report on the complete fully differential computation of radiative corrections at next-to-next-to-leading order (NNLO) in QCD perturbation theory. The…

High Energy Physics - Phenomenology · Physics 2015-04-07 Massimiliano Grazzini , Stefan Kallweit , Dirk Rathlev

We compute theoretical predictions for the production of a W-boson in association with a bottom-quark pair at hadron colliders at next-to-next-to-leading order (NNLO) in QCD, including the leptonic decay of the W-boson, while treating the…

High Energy Physics - Phenomenology · Physics 2022-05-17 Heribertus Bayu Hartanto , Rene Poncelet , Andrei Popescu , Simone Zoia

We consider the production of Wgamma and Zgamma pairs at the LHC, and report on the fully differential computation of next-to-next-to-leading order (NNLO) corrections in QCD perturbation theory. The calculation includes leptonic…

High Energy Physics - Phenomenology · Physics 2016-01-26 Massimiliano Grazzini , Stefan Kallweit , Dirk Rathlev

We give an overview of our calculation of the next-to-next-to-leading order (NNLO) QCD corrections to W + jet production in hadronic collisions. Phenomenological results for multiple differential distributions are compared to CMS data for 8…

High Energy Physics - Phenomenology · Physics 2018-07-25 Aude Gehrmann-De Ridder , Thomas Gehrmann , Nigel Glover , Alexander Huss , Duncan Walker

We present details of a calculation of the cross section for hadronic top-antitop production in next-to-leading order (NLO) QCD, including the decays of the top and antitop into bottom quarks and leptons. This calculation is based on matrix…

High Energy Physics - Phenomenology · Physics 2012-11-07 Ansgar Denner , Stefan Dittmaier , Stefan Kallweit , Stefano Pozzorini

We consider QCD radiative corrections to the production of W and Z bosons in hadron collisions. We present a fully exclusive calculation up to next-to-next-to-leading order (NNLO) in QCD perturbation theory. To perform this NNLO…

High Energy Physics - Phenomenology · Physics 2009-09-02 S. Catani , L. Cieri , G. Ferrera , D. de Florian , M. Grazzini

We present the first analytical results for the ${\cal O}(\alpha\alpha_s)$ corrections to the total cross section for the inclusive production of an on-shell $Z$ boson at hadron colliders. We include the complete set of contributions, with…

High Energy Physics - Phenomenology · Physics 2020-07-14 Roberto Bonciani , Federico Buccioni , Narayan Rana , Alessandro Vicini

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

Measuring precisely top-pair-associated processes at hadron colliders will become possible with the upcoming LHC running stages. The increased data statistics will especially enable differential measurements leading to an improved…

High Energy Physics - Phenomenology · Physics 2023-09-07 Ansgar Denner , Daniele Lombardi , Giovanni Pelliccioli

Top-antitop quark pairs belong to the most abundantly produced and precisely measurable heavy-particle signatures at hadron colliders and allow for crucial tests of the Standard Model and new-physics searches. Here we report on the…

High Energy Physics - Phenomenology · Physics 2011-06-22 A. Denner , S. Dittmaier , S. Kallweit , S. Pozzorini

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 report on the calculation of the next-to-leading order QCD corrections to the production of W-boson pairs in association with a hard jet at the Tevatron and the LHC, which is an important source of background for Higgs and new-physics…

High Energy Physics - Phenomenology · Physics 2010-01-15 Stefan Dittmaier , Stefan Kallweit , Peter Uwer

We consider QCD radiative corrections to Standard Model Higgs boson production in association with a W boson in hadron collisions. We present a fully exclusive calculation up to next-to-next-to-leading order (NNLO) in QCD perturbation…

High Energy Physics - Phenomenology · Physics 2013-05-29 G. Ferrera , M. Grazzini , F. Tramontano

We consider QCD radiative corrections to $ZZ$ production for all experimentally relevant leptonic processes. We report on a novel computation of next-to-next-to-leading-order (NNLO) corrections to the diboson signature with two charged…

High Energy Physics - Phenomenology · Physics 2018-10-17 Stefan Kallweit , Marius Wiesemann

We compute the next-to-leading order QCD corrections to WZ+jet production at the Tevatron and the LHC, including decays of the electroweak bosons to light leptons with all off-shell effects taken into account. The corrections are sizable…

High Energy Physics - Phenomenology · Physics 2014-11-21 F. Campanario , C. Englert , S. Kallweit , M. Spannowsky , D. Zeppenfeld

We present the first calculation of next-to-leading order QCD corrections to QCD-induced ZZ production in association with two jets at hadron colliders. Both Z bosons decay leptonically with all off-shell effects, virtual photon…

High Energy Physics - Phenomenology · Physics 2015-07-15 Francisco Campanario , Matthias Kerner , Le Duc Ninh , Dieter Zeppenfeld

We present a fully-exclusive next-to-next-to-leading order (NNLO) QCD calculation for vector boson production in hadron-hadron collisions. The calculation is implemented in a parton level Monte Carlo program, which includes the gamma-Z…

High Energy Physics - Phenomenology · Physics 2010-01-25 Giancarlo Ferrera
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