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相关论文: TtW at NLO in QCD: Full off-shell effects and prec…

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In these proceedings, we highlight some aspects of the recent computation of NNLO QCD corrections for W production in association with a charm jet at the LHC. The results are presented in the form of cross sections and differential…

高能物理 - 唯象学 · 物理学 2021-10-12 Michal Czakon , Alexander Mitov , Mathieu Pellen , Rene Poncelet

I discuss recent theoretical results with soft-gluon corrections for various top-quark production processes through approximate N$^3$LO, including soft anomalous dimensions through three loops. I present numerical results for total cross…

高能物理 - 唯象学 · 物理学 2023-02-21 Nikolaos Kidonakis

We calculate all main top-quark pair differential distributions at the Tevatron. For the first time Tevatron predictions for this process include all Standard Model corrections through NLO (referred to as complete-NLO) consistently combined…

高能物理 - 唯象学 · 物理学 2017-12-14 Michał Czakon , David Heymes , Alexander Mitov , Davide Pagani , Ioannis Tsinikos , Marco Zaro

We consider pair production and decay of fundamental unstable particles in the framework of a modified perturbation theory (MPT), which treats resonant contributions of unstable particles in the sense of distributions. The cross-sections…

高能物理 - 唯象学 · 物理学 2012-10-02 M. L. Nekrasov

This paper presents a measurement of fiducial and differential cross-sections for $W^{+}W^{-}$ production in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS experiment at the Large Hadron Collider using a dataset corresponding…

高能物理 - 实验 · 物理学 2023-11-16 ATLAS Collaboration

The sensitivity of nucleon-nucleus elastic scattering observables to the off-shell structure of nucleon-nucleon t-matrices, derived from realistic NN potentials, is investigated within the context of a full-folding model based on the…

核理论 · 物理学 2008-11-26 S. P. Weppner , Ch. Elster , D. Hueber

We present calculations of higher-order QCD and electroweak (EW) corrections to the associated production of a top-antitop quark pair and a $Z$ boson, i.e. $t{\bar t}Z$ production, in proton collisions. We find that the contributions from…

高能物理 - 唯象学 · 物理学 2025-10-21 Nikolaos Kidonakis , Chris Foster

Most general tbW couplings were investigated in the process \gamma \gamma -> ttbar -> l^{+-} X for unpolarized photon beams. The double angular and energy distribution of the lepton was calculated and an optimal-observable analysis on it…

高能物理 - 唯象学 · 物理学 2009-11-07 Kazumasa Ohkuma

We review the salient features of next-to-leading-order QCD and electroweak corrections to the scattering of two and the production of three weak gauge bosons at the Large Hadron Collider. Results for the tower of $O(\alpha_s^m\alpha^n)$…

高能物理 - 唯象学 · 物理学 2026-04-21 S. Dittmaier

We present an approach to predict exclusive $W^+bW^-\bar{b}$ production at lepton colliders that correctly describes the top-anti-top threshold as well as the continuum region. We incorporate $t\bar{t}$ form factors for the NLL threshold…

This review describes the current status of precision QCD studies at the LHC. We introduce the main experimental and theoretical methods, discussing also their cross-stimulated developments and recent advances. The different types of QCD…

高能物理 - 唯象学 · 物理学 2022-10-12 Thomas Gehrmann , Bogdan Malaescu

We present a fully-differential calculation of the NNLO QCD corrections to the t-channel mechanism for producing single top quarks at the LHC. We work in the structure function approximation, computing QCD corrections to the light- and…

高能物理 - 唯象学 · 物理学 2015-06-19 Mathias Brucherseifer , Fabrizio Caola , Kirill Melnikov

Precision studies of QCD at $e^+e^-$ colliders are based on measurements of event shapes and jet rates. To match the high experimental accuracy, theoretical predictions to next-to-next-to-leading order (NNLO) in QCD are needed for a…

高能物理 - 唯象学 · 物理学 2008-12-30 A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , G. Heinrich

Precision studies of top quark properties are currently underway at the LHC and Tevatron colliders with the prospect of probing anomalous t-W -b interactions. In the mean time, recent experimental results for the B_{d,s} - \bar{B}_{d,s}…

高能物理 - 唯象学 · 物理学 2015-05-30 Jure Drobnak , Svjetlana Fajfer , Jernej F. Kamenik

In this work we investigate the NLO QCD+EW corrections to the top quark pair production and their effects on the spin correlation coefficients and asymmetries at fixed-order top quark pair production and LO decay in the dilepton channel,…

高能物理 - 唯象学 · 物理学 2021-09-29 Rikkert Frederix , Ioannis Tsinikos , Timea Vitos

The extraction of the W-boson mass, a fundamental parameter of the Standard Model, from hadron-hadron collision requires precise theory predictions. In this regard, angular coefficients are crucial to model the dynamics of W-boson…

高能物理 - 唯象学 · 物理学 2022-08-24 Mathieu Pellen , Rene Poncelet , Andrei Popescu , Timea Vitos

Electroweak (EW) triboson production processes with at least one heavy gauge boson are of increasing interest at the Large Hadron Collider (LHC) as direct precision probes of one of the least-tested sectors of the Standard Model (SM), the…

高能物理 - 唯象学 · 物理学 2022-05-18 Huanfeng Cheng , Doreen Wackeroth

We review recent progress in next-to-next-to-leading order (NNLO) perturbative QCD calculations with special emphasis on results ready for phenomenological applications. Important examples are new results on structure functions and jet or…

高能物理 - 唯象学 · 物理学 2015-06-25 M. Klasen

In this paper I present a detailed QCD analysis of twist-3 effects in the Wandzura-Wilczek (WW) approximation in deeply virtual Compton scattering (DVCS) observables for various kinematical settings, representing the HERA, HERMES, CLAS and…

高能物理 - 唯象学 · 物理学 2009-11-10 A. Freund

Triple-W-boson production in proton-proton collisions allows for a direct access to the triple and quartic gauge couplings and provides a window to the mechanism of electroweak symmetry breaking. It is an important process to test the…

高能物理 - 唯象学 · 物理学 2017-09-20 Stefan Dittmaier , Alexander Huss , Gernot Knippen