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相关论文: The top-quark pair production cross section at nex…

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We present the first direct determination of the running top-quark mass based on the total cross section of top-quark pair-production as measured at the Tevatron. Our theory prediction for the cross section includes various…

高能物理 - 唯象学 · 物理学 2009-09-24 U. Langenfeld , S. Moch , P. Uwer

We have determined the QCD corrections to the production of squark-antisquark pairs in $p\bar p$ collisions at the Tevatron. If the next-to-leading order corrections are taken into account, the renormalization/factorization scale dependence…

高能物理 - 唯象学 · 物理学 2009-10-28 W. Beenakker , R. Höpker , M. Spira , P. M. Zerwas

We make use of recent results in effective theory and higher-order perturbative calculations to improve the theoretical predictions of the QCD contribution to the top-quark pair production forward-backward asymmetry at the Tevatron. In…

高能物理 - 唯象学 · 物理学 2013-05-29 Valentin Ahrens , Andrea Ferroglia , Matthias Neubert , Ben D. Pecjak , Li Lin Yang

I present the latest calculations of total and differential cross sections for top-antitop pair production and single top quark production via all main partonic channels. Higher-order corrections from the resummation of soft gluons are…

高能物理 - 唯象学 · 物理学 2011-04-20 Nikolaos Kidonakis

I present the resummation of collinear and soft gluon corrections to single top quark production in the t channel at next-to-next-to-leading logarithm (NNLL) accuracy using two-loop soft anomalous dimensions. The expansion of the resummed…

高能物理 - 唯象学 · 物理学 2011-05-25 Nikolaos Kidonakis

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

Precision predictions for phenomenologically interesting observables such as the t-tbar invariant mass distribution and forward-backward asymmetry in top-quark pair production at hadron colliders require control over the differential cross…

高能物理 - 唯象学 · 物理学 2015-03-13 Valentin Ahrens , Andrea Ferroglia , Matthias Neubert , Ben D. Pecjak , Li Lin Yang

We combine six measurements of the inclusive top-quark pair (ttbar) production cross section (sigma_ttbar) from data collected with the CDF and D0 detectors at the Fermilab Tevatron with proton anti-proton collisions at sqrt{s} = 1.96 TeV.…

高能物理 - 实验 · 物理学 2014-04-23 CDF Collaboration , D0 Collaboration

We present recent results on top quark pair production cross section and forward-backward asymmetry at the Tevatron. Three new cross section measurements from CDF and one new measurement from DO are presented that utilize the full dataset…

高能物理 - 实验 · 物理学 2019-08-14 Alison Lister

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

I present theoretical results at approximate NNLO from NNLL resummation for top quark production at the LHC and the Tevatron, including new results at 8 TeV LHC energy. Total cross sections are shown for t tbar production, for single top…

高能物理 - 唯象学 · 物理学 2012-05-16 Nikolaos Kidonakis

The top quark pair production cross-section ${\sigma}_{t\bar{t}}$ has been measured in $p\bar{p}$ collisions at center of mass energies of 1.96 TeV using Tevatron Run 2 data. In the begining of Run 2 both CDF and D\O\ $\sigma_{t\bar{t}}$…

高能物理 - 实验 · 物理学 2007-05-23 S. Cabrera

We derive high-order threshold corrections for top quark production in hadronic collisions from resummation calculations. We present analytical expressions for the cross section through next-to-next-to-next-to-next-to-leading order (N^4LO)…

高能物理 - 唯象学 · 物理学 2009-10-31 Nikolaos Kidonakis

We consider the resummation of soft gluon emission for squark-antisquark pair-production at the LHC at next-to-next-to-leading-logarithmic (NNLL) accuracy in the framework of the minimal supersymmetric standard model. We present the…

高能物理 - 唯象学 · 物理学 2015-05-30 W. Beenakker , S. Brensing , M. Krämer , A. Kulesza , E. Laenen , I. Niessen

We determine the next-to-leading logarithmic (NLL) QCD corrections to the cross section sigma(e+e- to t bar t H) for center-of-mass energies up to 500 GeV. The dynamics is dominated by nonrelativistic effects, and the summation of terms…

高能物理 - 唯象学 · 物理学 2008-11-26 C. Farrell , A. H. Hoang

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 compute the next-to-next-to-leading order QCD correction to the total inclusive top pair production cross-section in the reaction qg \to t\bar t + X. We find moderate O(1%) correction to central values at both Tevatron and LHC. The scale…

高能物理 - 唯象学 · 物理学 2015-06-11 Michal Czakon , Alexander Mitov

Single and pair top-quark production in proton-lead (p-Pb) and lead-lead (Pb-Pb) collisions at the CERN Large Hadron Collider (LHC) and future circular collider (FCC) energies, are studied with next-to-leading-order perturbative QCD…

高能物理 - 唯象学 · 物理学 2015-05-20 David d'Enterria , Krisztian Krajczar , Hannu Paukkunen

We compute the O(alpha_s^3) total cross section for the process (p pbar -> t tbar h) in the Standard Model, at \sqrt{s}=2 TeV. The next-to-leading order corrections drastically reduce the renormalization and factorization scale dependence…

高能物理 - 唯象学 · 物理学 2011-05-05 L. Reina , S. Dawson

At hadron colliders, top quarks are dominantly produced in pairs ($t\bar{t}$), a production mechanism that was discovered more than twenty years ago at the Tevatron in Fermilab. Although the \ttbar process has already entered the domain of…

高能物理 - 实验 · 物理学 2019-08-13 Juan R. González Fernández