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We revisit scalar leptoquark pair-production at hadron colliders and significantly improve the level of precision of the cross section calculations. Apart from QCD contributions, we include lepton t-channel exchange diagrams that turn out…

High Energy Physics - Phenomenology · Physics 2020-07-01 Christoph Borschensky , Benjamin Fuks , Anna Kulesza , Daniel Schwartländer

Light and heavy charged Higgs bosons are predicted by many models with an extended Higgs sector such as the two-Higgs-doublet model (2HDM). Searches for the charged Higgs bosons have been done by the ATLAS and the CMS experiments at the…

High Energy Physics - Phenomenology · Physics 2017-03-13 S. Mohammad Moosavi Nejad , S. Abbaspour

The most precise theoretical predictions for the total cross section for the associated production of a Higgs boson with a top-antitop quark pair at the LHC, first presented in \cite{Balsach:2025tth}, are reported. The calculation combines…

High Energy Physics - Phenomenology · Physics 2026-02-16 Anna Kulesza

First realistic estimate of the usefulness of the Photon Linear Collider with linearly polarized photons as analyzer of the CP-parity of Higgs bosons is presented. MSSM Higgs bosons H and A with 300 GeV mass, for the model parameters…

High Energy Physics - Phenomenology · Physics 2009-02-16 A. F. Zarnecki , P. Niezurawski , M. Krawczyk

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 2009-11-18 S. Dittmaier , S. Kallweit , P. Uwer

We compute the mixed QCD$\otimes$QED corrections to the production of on-shell $Z$ bosons at the LHC at a fully-exclusive level. We also include the factorised NLO QCD correction to $Z$ boson production and NLO QED correction to $Z$ boson…

High Energy Physics - Phenomenology · Physics 2020-01-29 Maximilian Delto , Matthieu Jaquier , Kirill Melnikov , Raoul Röntsch

This note describes the details of a simulation study of the Higgs boson production for processes in which the Higgs is produced together with a well measurable di-lepton system using the proposal of the ILD detector for its Letter of…

High Energy Physics - Experiment · Physics 2019-08-14 H. Li , R. Pöschl , F. Richard

We present the calculation of next-to-leading-order electroweak corrections to W-boson pair production at the LHC, taking off-shell effects of the W bosons and their leptonic decays into account in the framework of the so-called double-pole…

High Energy Physics - Phenomenology · Physics 2015-06-17 M. Billoni , S. Dittmaier , B. Jager , C. Speckner

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

The dominant production process for heavy charged Higgs bosons at the LHC is the associated production with heavy quarks. We have calculated the next-to-leading-order supersymmetric QCD corrections to charged-Higgs production through the…

High Energy Physics - Phenomenology · Physics 2011-03-21 Stefan Dittmaier , Michael Krämer , Michael Spira , Manuel Walser

Quantum entanglement of weak interaction gauge bosons produced at colliders can be explored by computing the corresponding polarization density matrix. To this end, we consider the Higgs boson decays $H\to W W^*$ and $H\to Z Z^*$, in which…

High Energy Physics - Phenomenology · Physics 2023-09-19 M. Fabbrichesi , R. Floreanini , E. Gabrielli , L. Marzola

Higgs physics at hadron colliders as the LHC is reviewed within the Standard Model (SM) and its minimal supersymmetric extension (MSSM) by summarizing the present state-of-the-art of theoretical predictions for the production cross sections…

High Energy Physics - Phenomenology · Physics 2021-03-15 Michael Spira

In the present work we study the predictions for $WZ$ and $ZZ$ production at LHC with the Electroweak Chiral Lagrangian (EChL) approach. Our analysis will be focused on the less favored case from the experimental point of view, in which the…

High Energy Physics - Phenomenology · Physics 2016-09-01 A. Dobado , M. J. Herrero , J. R. Pelaez , E. Ruiz Morales , M. T. Urdiales

An approach to calculate radiative corrections to unpolarized cross section of semi-inclusive electroproduction is developed. An explicit formulae for the lowest order QED radiative correction are presented. Detailed numerical analysis is…

High Energy Physics - Phenomenology · Physics 2011-09-13 I. Akushevich , N. Shumeiko , A. Soroko

The cross-section for W^+W^- \to W^+W^- with arbitrarily polarized W bosons is calculated within the Electroweak Standard Model including the complete virtual and soft-photonic O(alpha) corrections. We show the numerical importance of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Denner , T. Hahn

The Large Hadron Collider, LHC, though meant for discovery, will provide enough data from early phase to also perform various studies of Standard Model processes in as yet unexplored kinematic regions. Precision measurements of the…

High Energy Physics - Experiment · Physics 2008-09-10 Kajari Mazumdar

Vector-boson pair production is of great phenomenological importance at the LHC. These processes will help to validate the Standard Model at highest energies, and they may also open the door for the discovery of new physics potentially…

High Energy Physics - Phenomenology · Physics 2013-10-11 Stefan Gieseke , Tobias Kasprzik , Johann H. Kuhn

We present a calculation of the next-to-leading-order QCD and electroweak corrections to WWW production with leptonically decaying $\mathrm{W}$ bosons at the LHC, fully taking into account off-shell contributions, intermediary resonances,…

High Energy Physics - Phenomenology · Physics 2020-03-18 Stefan Dittmaier , Gernot Knippen , Christopher Schwan

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

Electroweak gauge boson pair production is a very important process at the LHC as it probes the non-abelian structure of electroweak interactions and is a background process for many searches. We present full next-to-leading order…

High Energy Physics - Phenomenology · Physics 2013-10-16 Julien Baglio , Le Duc Ninh , Marcus M. Weber