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Related papers: Top Quark Pair Production beyond NNLO

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We compute the total cross section for $t\bar{t}t\bar{t}$ production at next-to-leading logarithmic (NLL$^{\prime}$) accuracy. This is the first time resummation is performed for a hadron-collider process with four colored particles in the…

High Energy Physics - Phenomenology · Physics 2025-06-11 Melissa van Beekveld , Anna Kulesza , Laura Moreno Valero

We present state of the art resummation predictions for differential cross sections in top-quark pair production at the LHC. They are derived from a formalism which allows the simultaneous resummation of both soft and small-mass logarithms,…

High Energy Physics - Phenomenology · Physics 2016-05-25 Benjamin D. Pecjak , Darren J. Scott , Xing Wang , Li Lin Yang

We study higher-order QCD corrections for the associated production of a top-antitop quark pair and a $W$ boson ($t{\bar t}W$ production) in proton-proton collisions. We calculate approximate NNLO (aNNLO) and approximate N$^3$LO (aN$^3$LO)…

High Energy Physics - Phenomenology · Physics 2024-05-22 Nikolaos Kidonakis , Chris Foster

I present new results and updates for total cross sections and differential distributions in top-antitop pair and single-top production. Soft-gluon corrections are added to exact fixed-order results to provide the best predictions at…

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

We present the production cross section of heavy quarks \sigma^{cc}, \sigma^{bb} and {\sigma^{tt}} at the next-to-leading order in the electron-proton interaction by using the quarks and gluon distribution functions at the initial scale…

High Energy Physics - Phenomenology · Physics 2023-01-31 S. Zarrin , S. Dadfar , M. Sayahi

We summarize calculations of the cross section for top quark production at hadron colliders within the context of perturbative quantum chromodynamics, including resummation of the effects of initial-state soft gluon radiation to all orders…

High Energy Physics - Phenomenology · Physics 2007-05-23 Edmond L. Berger , Harry Contopanagos

We compute the QCD corrections to the production of a top quark pair in association with one hard jet at the Tevatron and the LHC, using the method of generalized D-dimensional unitarity. Top quark decays are included at leading order in…

High Energy Physics - Phenomenology · Physics 2014-11-20 Kirill Melnikov , Markus Schulze

We present the predictions at next-to-leading order (NLO) in the strong coupling for the single-top cross section in the t channel at the Tevatron and the LHC. Our calculation starts from the 2 -> 3 Born amplitude g q -> t bbar q', keeping…

High Energy Physics - Phenomenology · Physics 2009-06-30 John M. Campbell , Rikkert Frederix , Fabio Maltoni , Francesco Tramontano

In this proceedings we compare phenomenological predictions for differential distributions in top-quark pair production at the LHC. In particular we consider NNLO QCD fixed-order predictions and parton-level predictions based on NLO QCD…

We present results for the top quark pair cross section at the Tevatron and the LHC. We use the resummed double differential cross section, employing the fully kinematics-dependent soft anomalous dimension matrices, to calculate the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Nikolaos Kidonakis , Ramona Vogt

Presented are complete next-to-leading order electroweak (NLO EW) corrections to top-squark pair production at the Large Hadron Collider (LHC) within the Minimal Supersymmetric Standard Model (MSSM). At this order, also effects from the…

High Energy Physics - Phenomenology · Physics 2009-02-18 Wolfgang Hollik , Monika Kollar , Maike K. Trenkel

The study of top-quark production and decay is central in the LHC physics programme, allowing precise tests of the Standard Model and offering a window on possible new physics. Accurate theoretical predictions for this process are therefore…

High Energy Physics - Phenomenology · Physics 2019-12-17 Simone Devoto

I present theoretical results for top-pair production as well as for the associated production of top quarks with $W$ bosons. Soft-gluon corrections from resummation are calculated through approximate N$^3$LO and added to fixed-order QCD…

High Energy Physics - Phenomenology · Physics 2024-08-27 Nikolaos Kidonakis

We study the effects of the exact top-quark mass dependent two-loop corrections to Higgs boson pair production by gluon fusion at the LHC and at a 100 TeV hadron collider. We perform a detailed comparison of the full next-to-leading order…

High Energy Physics - Phenomenology · Physics 2016-11-23 S. Borowka , N. Greiner , G. Heinrich , S. P. Jones , M. Kerner , J. Schlenk , T. Zirke

Top quark-antiquark ($t\bar t$) pairs will be produced copiously at the Tevatron collider and in huge numbers at the LHC. This will make possible detailed investigations of the properties and interactions of this quark flavor. The analysis…

High Energy Physics - Phenomenology · Physics 2009-11-07 W. Bernreuther , A. Brandenburg , Z. G. Si , P. Uwer

In this paper we examine thoroughly the single (anti-)top quark production associated with a lightest neutralino at the possible CERN Large Hadron Electron Collider (LHeC). We calculate the full next-to-leading order (NLO) QCD corrections…

High Energy Physics - Phenomenology · Physics 2013-07-23 Li Xiao-Peng , Guo Lei , Ma Wen-Gan , Zhang Ren-You , Han Liang , Song Mao

We discuss various aspects of inclusive top-quark pair production based on TOPIXS, a new, flexible program that computes the production cross section at the Tevatron and LHC at next-to-next-to-leading logarithmic accuracy in soft and…

High Energy Physics - Phenomenology · Physics 2012-08-09 M. Beneke , P. Falgari , S. Klein , J. Piclum , C. Schwinn , M. Ubiali , F. Yan

We calculate, for the first time, the next-to-next-to leading order (NNLO) QCD corrections to spin correlations in top quark pair production at the LHC. The NNLO corrections play an important role in the description of the corresponding…

High Energy Physics - Phenomenology · Physics 2019-08-28 Arnd Behring , Michal Czakon , Alexander Mitov , Andrew S. Papanastasiou , Rene Poncelet

In the framework of the littlest Higgs model with $T$ parity, we study the $W_H/Z_H+q_-$ and $W_H$-pair productions at the CERN Large Hadron Collider up to the QCD next-to-leading order (NLO). The kinematic distributions of final decay…

High Energy Physics - Phenomenology · Physics 2014-06-11 Guo Lei , Zhang Ren-You , Ma Wen-Gan

We present the calculation of the cross section for Higgs boson production in association with a top quark pair plus one jet, at next-to-leading-order (NLO) accuracy in QCD. All mass dependence is retained without recurring to any…

High Energy Physics - Phenomenology · Physics 2014-11-19 Hans van Deurzen , Gionata Luisoni , Pierpaolo Mastrolia , Edoardo Mirabella , Giovanni Ossola , Tiziano Peraro