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相关论文: Top-quark pair-production and decay at high precis…

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We present results at NLO QCD for hadronic production and decay of top quark pairs, taking into account t tbar spin correlations.

高能物理 - 唯象学 · 物理学 2009-11-07 W. Bernreuther , A. Brandenburg , Z. G. Si , P. Uwer

We compute QCD corrections to the production of a ttbar pair in association with a hard photon at the Tevatron and the LHC. This process allows a direct measurement of the top quark electromagnetic couplings that, at the moment, are only…

高能物理 - 唯象学 · 物理学 2015-03-18 Kirill Melnikov , Andreas Scharf , Markus Schulze

We present an NLO simulation of WWbb production with massive b-quarks at the LHC. Off-shell and non-resonant contributions associated with top-pair and single-top channels and with leptonic W-boson decays are consistently taken into account…

高能物理 - 唯象学 · 物理学 2015-06-18 F. Cascioli , S. Kallweit , P. Maierhöfer , S. Pozzorini

We present a comprehensive study of differential distributions for Tevatron top-pair events at the level of stable top quarks. All calculations are performed in NNLO QCD with the help of a fully differential partonic Monte-Carlo and are…

高能物理 - 唯象学 · 物理学 2016-05-25 Michal Czakon , Paul Fiedler , David Heymes , Alexander Mitov

We present a systematic comparison of different approaches for the modeling of $t\bar{t}\gamma$ final states with leptonic decays at the LHC. On the one hand, we consider a complete calculation at NLO QCD accuracy which includes all…

高能物理 - 唯象学 · 物理学 2020-08-26 Giuseppe Bevilacqua

We consider top quark pair production in association with a hard jet through next-to-leading order in perturbative QCD. Top quark decays are treated in the narrow width approximation and spin correlations are retained throughout the…

高能物理 - 唯象学 · 物理学 2013-05-30 Kirill Melnikov , Andreas Scharf , Markus Schulze

We present a phenomenological study of the single top (anti-)quark production with leptonic decays at the Large Hadron electron Collider (LHeC) at the next-to-leading-order (NLO) in QCD. We focus on various differential distributions in a…

高能物理 - 唯象学 · 物理学 2021-09-22 Meisen Gao , Jun Gao

We investigate a number of observables that are and will be instrumental in the exploration of $\tbart$ production and decay at the Tevatron and the LHC. For this analysis we made a computer program that incorporates besides the NLO QCD…

高能物理 - 唯象学 · 物理学 2014-11-20 Werner Bernreuther , Zong-Guo Si

A large number of top quarks will be produced at the Large Hadron Collider (LHC) for Run II period. This will allow us to measure the rare processes from the top sector in great details. We present the study of the top-quark pair production…

高能物理 - 实验 · 物理学 2015-09-28 Young Kwon Jo , Su Yong Choi , Tae Jeong Kim , Youn Jung Roh

We present a comprehensive study of the production of top quark pairs in association with one hard jet in the di-lepton decay channel at the LHC. Our predictions, accurate at NLO in QCD, focus on the LHC Run II with a center-of-mass energy…

高能物理 - 唯象学 · 物理学 2016-11-28 G. Bevilacqua , H. B. Hartanto , M. Kraus , M. Worek

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…

The results of phenomenological studies of top-quark pair production in proton-proton collisions are presented. Differential cross sections are calculated in perturbative QCD at approximate next-to-next-to-leading order ${\cal…

高能物理 - 唯象学 · 物理学 2015-06-19 Marco Guzzi , Katerina Lipka , Sven-Olaf Moch

We present heavy-flavor production in association with one jet in hadronic collisions matched to parton shower Monte Carlo predictions at next-to-leading order QCD with account of top-quark decays and spin correlations. We use the POWHEGBOX…

高能物理 - 唯象学 · 物理学 2012-06-11 Simone Alioli , Juan Fuster , Adrian Irles , Sven-Olaf Moch , Peter Uwer , Marcel Vos

We report on the next-to-leading order(NLO) QCD computation of top-quark pair production in association with a photon at the Fermilab Tevatron RUN II and CERN Large Hadron Collider(LHC). We describe the impact of the complete NLO QCD…

高能物理 - 唯象学 · 物理学 2009-07-18 Duan Peng-Fei , Ma Wen-Gan , Zhang Ren-You , Han Liang , Guo Lei , Wang Shao-Ming

We study the QCD corrections at next-to-next-to-leading order (NNLO) to the cross section for the hadronic pair-production of top quarks. We present new results in the high-energy limit using the well-known framework of k_t-factorization.…

高能物理 - 唯象学 · 物理学 2015-06-04 S. Moch , P. Uwer , A. Vogt

I discuss and compare several approaches to higher-order calculations of top quark production. I study the relative effectiveness of the approaches in approximating the exact NNLO results for the top-pair total cross section and highlight…

高能物理 - 唯象学 · 物理学 2013-05-01 Nikolaos Kidonakis

We report on the calculation of the next-to-leading order QCD corrections to the production of ttbar pairs in association with two hard jets at the Fermilab TeVatron and CERN Large Hadron Collider. Results for the integrated and…

高能物理 - 唯象学 · 物理学 2015-03-19 G. Bevilacqua , M. Czakon , C. G. Papadopoulos , M. Worek

We study the production of a top-quark pair in association with one and two vector bosons, $t \bar t V$ and $t \bar t VV$ with $V=\gamma, Z, W^\pm$, at the LHC. We provide predictions at next-to-leading order in QCD for total cross sections…

高能物理 - 唯象学 · 物理学 2016-04-05 Fabio Maltoni , Davide Pagani , Ioannis Tsinikos

We present a detailed phenomenological study of the next-to-next-to-leading order (NNLO) QCD corrections for $t$-channel single top (anti-)quark production and its semi-leptonic decay at the CERN Large Hadron Collider (LHC). We find the…

高能物理 - 唯象学 · 物理学 2020-04-02 Edmond L. Berger , Jun Gao , Hua Xing Zhu

We report on the first fully differential calculation of the next-to-next-to-leading-order (NNLO) QCD radiative corrections to the production of bottom-quark pairs at hadron colliders. The calculation is performed by using the $q_T$…

高能物理 - 唯象学 · 物理学 2021-03-17 Stefano Catani , Simone Devoto , Massimiliano Grazzini , Stefan Kallweit , Javier Mazzitelli