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NLO-QCD corrections to vector boson pair production via weak boson fusion have recently been calculated and implemented into flexible parton-level Monte-Carlo programs. These allow for the computation of cross sections and kinematical…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Jager , C. Oleari , D. Zeppenfeld

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

High Energy Physics - Phenomenology · Physics 2008-11-26 Stefan Dittmaier , Stefan Kallweit , Peter Uwer

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 present a computation of the next-to-leading order QCD corrections to the production of three Z bosons at the LHC. We calculate these corrections using a completely numerical method that combines sector decomposition to extract infrared…

High Energy Physics - Phenomenology · Physics 2008-11-26 Achilleas Lazopoulos , Kirill Melnikov , Frank Petriello

This paper describes a measurement of the W boson transverse momentum distribution using ATLAS pp collision data from the 2010 run of the LHC at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of about 31 pb^-1. Events from both…

High Energy Physics - Experiment · Physics 2012-08-27 ATLAS Collaboration

This report was prepared in the context of the LPCC "Electroweak Precision Measurements at the LHC WG" and summarizes the activity of a subgroup dedicated to the systematic comparison of public Monte Carlo codes, which describe the…

I present approximate N$^3$LO theoretical results for top-antitop pair production, and for single-top production in association with a $W$ boson. The higher-order corrections are from soft-gluon radiation, which is dominant near partonic…

High Energy Physics - Phenomenology · Physics 2017-09-21 Nikolaos Kidonakis

We compute the NLO QCD corrections to the pair production of W-bosons in association with two jets at the Tevatron and the LHC. This process is an important background to heavy Higgs-boson production in association with two jets, either in…

High Energy Physics - Phenomenology · Physics 2015-03-19 Tom Melia , Kirill Melnikov , Raoul Rontsch , Giulia Zanderighi

I present theoretical results for charged Higgs production in association with a $W$ boson or a top quark at the LHC. I calculate higher-order threshold corrections and show that they are very significant. I present detailed results for…

High Energy Physics - Phenomenology · Physics 2023-02-21 Nikolaos Kidonakis

We present predictions for top anti-top bottom anti-bottom production at the LHC in next-to-leading order QCD. The precise description of this background process is a prerequisite to observe associated top anti-top Higgs production in the…

High Energy Physics - Phenomenology · Physics 2015-05-18 Axel Bredenstein , Ansgar Denner , Stefan Dittmaier , Stefano Pozzorini

We present the full NLO QCD corrections to the production of a W^+W^- pair in association with two jets in hadronic collisions, which is an important background to New Physics and Higgs boson searches. We include leptonic decays of the…

High Energy Physics - Phenomenology · Physics 2015-06-04 N. Greiner , G. Heinrich , P. Mastrolia , G. Ossola , T. Reiter , F. Tramontano

We perform an analytic calculation of the one-loop amplitude for the W-boson mediated process 0 \to d u-bar Q Q-bar l-bar l, retaining the mass for the quark Q. The momentum of each of the massive quarks is expressed as the sum of two…

High Energy Physics - Phenomenology · Physics 2011-03-18 Simon Badger , John M. Campbell , R. K. Ellis

In this paper we study the Single Top and W boson associated photoproduction via the main reaction $\rm pp\rightarrow p\gamma p\rightarrow pW^{\pm}t+Y$ at the 14 TeV Large Hadron Collider (LHC) up to next-to-leading order (NLO) QCD level…

High Energy Physics - Phenomenology · Physics 2015-06-22 Hao Sun , Wei Liu , Xiao-Juan Wang , Ya-Jin Zhou , Hong-Sheng Hou

The next-to-leading-order electroweak corrections to $pp\to l^+l^-/\bar\nu\nu+\gamma+X$ production, including all off-shell effects of intermediate Z bosons in the complex-mass scheme, are calculated for LHC energies, revealing the…

High Energy Physics - Phenomenology · Physics 2016-03-23 Ansgar Denner , Stefan Dittmaier , Markus Hecht , Christian Pasold

We consider Standard Model Higgs boson production in association with a W boson in hadron collisions. We supplement the fully exclusive perturbative computation of QCD radiative effects up to next-to-next-to-leading order (NNLO) with the…

High Energy Physics - Phenomenology · Physics 2014-04-15 Giancarlo Ferrera , Massimiliano Grazzini , Francesco Tramontano

The discovery of a Standard Model Higgs boson is possible when experimental cuts are applied which increase the ratio of signal and background cross-sections. In this paper we study the pp->H->WW signal cross-section at the LHC which…

High Energy Physics - Phenomenology · Physics 2008-11-26 Charalampos Anastasiou , Guenther Dissertori , Fabian Stoeckli , Bryan R. Webber

The inclusive production cross sections for $W^+, W^-$ and $Z^0$-bosons form important benchmarks for the physics at hadron colliders. We perform a detailed comparison of the predictions for these standard candles based on recent…

High Energy Physics - Phenomenology · Physics 2011-05-26 S. Alekhin , J. Blümlein , P. Jimenez-Delgado , S. Moch , E. Reya

We present results for the polarisation of gauge bosons produced at the LHC. Polarisation effects for W bosons manifest themselves in the angular distributions of the lepton and in the distributions of lepton transverse momentum and missing…

High Energy Physics - Phenomenology · Physics 2015-06-12 James Stirling , Eleni Vryonidou

In this talk we present results of our recent calculations of cross sections and distributions for the associate production of top-antitop quark pairs with a heavy boson (Higgs, W, Z) at the LHC, obtained using threshold resummation in…

High Energy Physics - Phenomenology · Physics 2019-05-21 Anna Kulesza , Leszek Motyka , Daniel Schwartländer , Tomasz Stebel , Vincent Theeuwes

A precise theoretical description of W- and Z-boson production in the resonance region is essential for the correct interpretation of high-precision measurements of the W-boson mass and the effective weak mixing angle. Currently, the…

High Energy Physics - Phenomenology · Physics 2016-02-17 Stefan Dittmaier , Alexander Huss , Christian Schwinn