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We present cross sections and differential distributions for QCD radiative corrections to the QCD processes pp -> W+2j and pp -> Z+2j at the CERN LHC. Calculations are performed with the Monte Carlo program MCFM. Cross section dependence on…

高能物理 - 唯象学 · 物理学 2008-11-26 John Campbell , R. K. Ellis , D. Rainwater

We present the first results on the two-loop massless QCD corrections to the four-point amplitude $b+\overline{b} \rightarrow H+H$ in the five flavor scheme, treating bottom quarks as massless. This amplitude is sensitive to the trilinear…

高能物理 - 唯象学 · 物理学 2019-06-03 Ajjath A H , Pulak Banerjee , Amlan Chakraborty , Prasanna K. Dhani , Pooja Mukherjee , Narayan Rana , V. Ravindran

The Higgs boson pair production at the LHC provides a probe to the Higgs boson self-coupling. The higher-order QCD corrections in this process are sizable and must be taken into account in comparison with data. Due to the small cross…

高能物理 - 唯象学 · 物理学 2025-03-28 Hai Tao Li , Zong-Guo Si , Jian Wang , Xiao Zhang , Dan Zhao

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…

高能物理 - 唯象学 · 物理学 2026-02-16 Anna Kulesza

For the first time full next-to-leading-order electroweak corrections to off-shell vector-boson scattering are presented. The computation features the complete matrix elements, including all non-resonant and off-shell contributions, to the…

高能物理 - 唯象学 · 物理学 2017-07-05 Benedikt Biedermann , Ansgar Denner , Mathieu Pellen

We report on the calculation of the next-to-leading order QCD corrections to the production of top--anti-top quark pairs in association with a hard jet at the Tevatron and at the LHC. We present results for the t tbar + jet cross section…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Dittmaier , P. Uwer , S. Weinzierl

We report on the first fully differential calculation for double Higgs boson production through gluon fusion in hadron collisions up to next-to-next-to-leading order (NNLO) in QCD perturbation theory. The calculation is performed in the…

The QCD-induced $W^\pm \gamma$ production channels in association with two jets are computed at next-to-leading order QCD accuracy. The W bosons decay leptonicly and full off-shell and finite width effects as well as spin correlations are…

高能物理 - 唯象学 · 物理学 2015-07-15 Francisco Campanario , Matthias Kerner , Le Duc Ninh , Dieter Zeppenfeld

Vector-boson fusion processes are an important tool for the study of electroweak symmetry breaking at hadron colliders, since they allow to distinguish a light Higgs boson scenario from strong weak boson scattering. We here consider the…

高能物理 - 唯象学 · 物理学 2008-11-26 Barbara Jager , Carlo Oleari , Dieter Zeppenfeld

We present two precision tools for the simulation of Higgs-pair production via vector-boson fusion in the kappa framework for the parameterization of non-standard Higgs couplings. A new implementation of the process is developed in the…

高能物理 - 唯象学 · 物理学 2025-06-13 Barbara Jäger , Alexander Karlberg , Simon Reinhardt

Recent discrepancies between theoretical predictions and experimental data in multi-lepton plus $b$-jets analyses for the $t\bar{t}W^\pm$ process, as reported by the ATLAS collaboration, have indicated that more accurate theoretical…

高能物理 - 唯象学 · 物理学 2021-08-04 Giuseppe Bevilacqua , Huan-Yu Bi , Heribertus Bayu Hartanto , Manfred Kraus , Jasmina Nasufi , Malgorzata Worek

A short summary of results for top-quark pair production in association with a jet with NLO QCD off-shell effects at the LHC is given. The calculation is based on the matrix element for the $pp \to e^+ \nu_e \mu^-\bar{\nu}_\mu b\bar{b} j$…

高能物理 - 唯象学 · 物理学 2016-07-07 Malgorzata Worek

We consider direct diphoton production in hadron collisions. We compute the next-to-next-to-leading order (NNLO) QCD radiative corrections at the fully-differential level. Our calculation uses the q_T subtraction formalism and it is…

高能物理 - 唯象学 · 物理学 2012-09-17 Leandro Cieri

We study QCD corrections to the process where a Higgs boson is produced in weak boson fusion and then decays into a pair of massive $b$ quarks. We find that typical experimental criteria used to identify $b$ jets in this process affect QCD…

高能物理 - 唯象学 · 物理学 2024-07-15 Konstantin Asteriadis , Arnd Behring , Kirill Melnikov , Ivan Novikov , Raoul Röntsch

We present next-to-leading order QCD predictions for cross sections and for a comprehensive set of distributions in diphoton + 2-jet production at the Large Hadron Collider. We consider the contributions from loop amplitudes for two photons…

高能物理 - 唯象学 · 物理学 2014-09-10 Z. Bern , L. J. Dixon , F. Febres Cordero , S. Hoeche , H. Ita , D. A. Kosower , N. A. Lo Presti , D. Maitre

We present a calculation of the full next-to-leading order QCD corrections to the scattering process pp \to t tbar Z. This channel will be used to measure the t tbar Z electroweak couplings at the Large Hadron Collider. These couplings…

高能物理 - 唯象学 · 物理学 2008-11-26 Achilleas Lazopoulos , Thomas McElmurry , Kirill Melnikov , Frank Petriello

We perform an update of the next-to-leading order calculation of the rate for Higgs boson production in association with two jets. Our new calculation incorporates the full analytic result for the one-loop virtual amplitude. This new…

高能物理 - 唯象学 · 物理学 2014-11-20 John M. Campbell , R. Keith Ellis , Ciaran Williams

We present a complete description of top quark pair production in association with a jet in the dilepton channel. Our calculation is accurate to next-to-leading order in QCD (NLO) and includes all non-resonant diagrams, interferences and…

高能物理 - 唯象学 · 物理学 2016-02-10 G. Bevilacqua , H. B. Hartanto , M. Kraus , M. Worek

In this paper, we present results at next-to-leading order (NLO) QCD for photon pair production in association with two jets via vector boson scattering within the Standard Model (SM), and also in an effective field theory framework with…

高能物理 - 唯象学 · 物理学 2020-07-15 Francisco Campanario , Matthias Kerner , Le Duc Ninh , Ivan Rosario

In this contribution we present recent progress in the computation of next-to-leading order (NLO) QCD corrections for the production of an electroweak vector boson in association with jets at hadron colliders. We focus on results obtained…

高能物理 - 唯象学 · 物理学 2022-03-02 Z. Bern , G. Diana , L. J. Dixon , F. Febres Cordero , D. Forde , T. Gleisberg , S. Hoeche , H. Ita , D. A. Kosower , D. Maitre , K. Ozeren