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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 study the impact of anomalous gauge boson and fermion couplings on the production of $W^+W^-$ pairs at the LHC. Helicity amplitudes are presented separately to demonstrate the sources of new physics contributions and the impact of QCD…

High Energy Physics - Phenomenology · Physics 2017-10-18 Julien Baglio , Sally Dawson , Ian M. Lewis

We have computed the full next-to-leading (NLO) QCD corrections to the differential distributions $d^2\sigma/(dp_T~dy)$ for pseudo-scalar Higgs (A) production at large hadron colliders. This calculation has been carried out using the…

High Energy Physics - Phenomenology · Physics 2009-11-07 B. Field , J. Smith , M. E. Tejeda-Yeomans , W. L. van Neerven

We introduce a modified factorization formalism in quantum chromodynamics for hadronic production of $W$ and $Z$ bosons at large transverse momentum $p_T$. When $p_T$ is much larger than the invariant mass $Q$ of the vector boson, this new…

High Energy Physics - Phenomenology · Physics 2015-06-10 Edmond L. Berger , Jun Gao , Zhong-Bo Kang , Jian-Wei Qiu , Hao Zhang

In this article we have studied the transverse momentum distribution of the pseudo-scalar Higgs boson at the Large Hadron Collider (LHC). The small $\pt$ region which provides the bulk of the cross section is not accessible to fixed order…

High Energy Physics - Phenomenology · Physics 2018-12-24 Neelima Agarwal , Pulak Banerjee , Goutam Das , Prasanna K. Dhani , Ayan Mukhopadhyay , V. Ravindran , Anurag Tripathi

To measure spin-dependent parton distribution functions in the production of W bosons at the Relativistic Heavy Ion Collider, an accurate model for distributions of charged leptons from the W boson decay is needed. We present single-spin…

High Energy Physics - Phenomenology · Physics 2009-11-07 P. M. Nadolsky , C. -P. Yuan

I present theoretical calculations for Higgs-boson and top-quark production, including high-order soft-gluon corrections. I discuss charged-Higgs production in association with a top quark or a $W$ boson, as well as single-top and…

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

A complete description of W and Z boson production at high-energy colliders requires the resummation of large Sudakov logarithms which dominate the production at small transverse momentum. Currently there are two techniques for performing…

High Energy Physics - Phenomenology · Physics 2008-11-26 Anna Kulesza , W. James Stirling

We study 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 transverse…

High Energy Physics - Phenomenology · Physics 2017-08-23 W. J. Stirling , E. Vryonidou

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

With the goal of increasing the precision of NLO QCD predictions for the $pp\to t\bar{t} \gamma$ process in the di-lepton top quark decay channel we present theoretical predictions for the ${\cal R}=…

High Energy Physics - Phenomenology · Physics 2019-01-28 G. Bevilacqua , H. B. Hartanto , M. Kraus , T. Weber , M. Worek

We study QCD corrections for the associated production of a single top quark and a photon ($tq\gamma$ production) at hadron colliders. We calculate the NLO cross section at LHC and future collider energies for a variety of kinematical cuts,…

High Energy Physics - Phenomenology · Physics 2022-08-08 Nikolaos Kidonakis , Nodoka Yamanaka

We present new, state-of-the-art predictions for the associated production of the SM Higgs boson with top quarks, computed in accordance with the recommendations of the LHC Higgs Working Group. The NNLO QCD predictions, derived through…

This talk summarizes the first calculation of the next-to-leading-order electroweak corrections to W-boson + jet hadroproduction including leptonic W-boson decays [1]. The W-boson resonance is treated consistently using the complex-mass…

High Energy Physics - Phenomenology · Physics 2014-11-20 Ansgar Denner , Stefan Dittmaier , Tobias Kasprzik , Alexander Mück

We analyse the production of a Higgs boson in association with a top--antitop-quark pair in the Standard Model at the LHC. Considering the final state consisting of four b jets, two jets, one identified charged lepton and missing energy, we…

High Energy Physics - Phenomenology · Physics 2015-12-01 Ansgar Denner , Robert Feger , Andreas Scharf

We consider the next-to-leading order QCD corrections to Higgs boson pair production, using our recent calculation of the form factors in the high-energy limit. We compute the virtual corrections to the partonic cross section, applying…

High Energy Physics - Phenomenology · Physics 2020-01-08 Joshua Davies , Gudrun Heinrich , Stephen P. Jones , Matthias Kerner , Go Mishima , Matthias Steinhauser , David Wellmann

We introduce an observable relevant for the determination of the $W$-boson mass $m_W$ at hadron colliders. This observable is defined as an asymmetry around the jacobian peak of the charged-lepton transverse-momentum distribution in the…

High Energy Physics - Phenomenology · Physics 2024-04-15 Luca Rottoli , Paolo Torrielli , Alessandro Vicini

In this contribution we present our recent computation of the NNLO QCD corrections to the production of a Higgs boson associated with a top-antitop quark pair. This process is of great importance since it allows for a direct measurement of…

High Energy Physics - Phenomenology · Physics 2023-10-10 Simone Devoto

Higher-order predictions through the combined accuracy including next-to-leading order (NLO) electroweak (EW) and next-to-NLO (NNLO) quantum chromodynamics (QCD) corrections in underlying perturbation theories are presented thoroughly for…

High Energy Physics - Phenomenology · Physics 2023-07-27 Kadir Saygin

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
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