English
Related papers

Related papers: NNLO versus NLO multi-jet merging for top-pair pro…

200 papers

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 production of a single top quark in association with a $\mathrm{Z}$ boson ($\mathrm{t}\mathrm{Z}\mathrm{j}$ production) at the LHC is a relevant probe of the electroweak sector of the Standard Model as well as a window to possible…

High Energy Physics - Phenomenology · Physics 2022-11-15 Ansgar Denner , Giovanni Pelliccioli , Christopher Schwan

Electroweak corrections associated with the instability of the top quark to the next-to-next-to-leading logarithmic (NNLL) total top pair threshold cross section in e+e- annihilation are determined. Our method is based on absorptive parts…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. H. Hoang , C. J. Reisser

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…

High Energy Physics - Phenomenology · Physics 2015-03-19 G. Bevilacqua , M. Czakon , C. G. Papadopoulos , M. Worek

Theoretical predictions with next-to-next-to-leading order (NNLO) QCD accuracy combined with the next-to-leading order (NLO) electroweak (EW) corrections are presented for differential observables of the double-Higgs production process via…

High Energy Physics - Phenomenology · Physics 2022-09-16 Frédéric A. Dreyer , Alexander Karlberg , Jean-Nicolas Lang , Mathieu Pellen

We compute the cross section for the production of a high-mass photon pair in association with two hadronic jets to next-to-leading order (NLO) in quantum chromodynamics (QCD). Our results allow for the first time to reliably predict the…

High Energy Physics - Phenomenology · Physics 2015-06-16 Thomas Gehrmann , Nicolas Greiner , Gudrun Heinrich

A precise measurement of the top quark mass, a fundamental parameter of the Standard Model, is among the most important goals of top quark studies at the Large Hadron Collider. Apart from the standard methods, numerous new observables and…

High Energy Physics - Phenomenology · Physics 2018-04-04 G. Bevilacqua , H. B. Hartanto , M. Kraus , M. Schulze , M. Worek

In this work we perform the first ever calculation of jet event shapes at hadron colliders at next-to-next-to leading order (NNLO) in QCD. The inclusion of higher order corrections removes the shape difference observed between data and…

High Energy Physics - Phenomenology · Physics 2023-04-05 Manuel Alvarez , Josu Cantero , Michal Czakon , Javier Llorente , Alexander Mitov , Rene Poncelet

We present NLO electroweak corrections to Higgs production in association with off-shell top-antitop quark pairs. The full process $\text{p}\text{p}\to\text{e}^+\nu_{\text{e}} \mu^-\bar{\nu}_\mu\text{b}\bar{\text{b}} \text{H}$ is…

High Energy Physics - Phenomenology · Physics 2017-02-15 Ansgar Denner , Jean-Nicolas Lang , Mathieu Pellen , Sandro Uccirati

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…

High Energy Physics - Phenomenology · Physics 2016-11-28 G. Bevilacqua , H. B. Hartanto , M. Kraus , M. Worek

We compute the next-to-next-to-leading order (NNLO) QCD correction to the total cross-section for the reaction gg \to t\bar t + X. Together with the partonic channels we computed previously, the result derived in this letter completes the…

High Energy Physics - Phenomenology · Physics 2013-08-06 Michal Czakon , Paul Fiedler , Alexander Mitov

Single-jet production with missing transverse momentum is one of the most promising discovery channels for new physics at the LHC. In the Standard Model, Z + jet production with a Z-boson decay into neutrinos leads to this monojet…

High Energy Physics - Phenomenology · Physics 2015-06-12 Ansgar Denner , Stefan Dittmaier , Tobias Kasprzik , Alexander Mück

The abundant amount of data to be collected by the ATLAS and CMS collaborations in future runs of the Large Hadron Collider at CERN opens up a new era of precision physics. Some of the most prominent precision observables are related to…

High Energy Physics - Phenomenology · Physics 2021-12-24 João Pires

Single slepton production in association with a top quark at the CERN Large Hadron Collider (LHC) is one of the important processes in probing the R-parity violation couplings. We calculate the QCD next-to-leading order (NLO) corrections to…

High Energy Physics - Phenomenology · Physics 2012-03-29 Li Xiao-Peng , Guo Lei , Ma Wen-Gan , Han Liang , Zhang Ren-You , Wang Shao-Ming

In these proceedings, we report recent progress of theoretical predictions for loop-induced Higgs boson production at the Large Hadron Collider (LHC). Our contributions include the next-to-leading order (NLO) QCD and electroweak corrections…

High Energy Physics - Phenomenology · Physics 2025-04-15 Hantian Zhang

We present the NLO QCD corrections to the production of a W+W- pair and two b-jets, including the leptonic decays of the W bosons. Contributions from singly resonant and non-resonant top quarks are fully taken into account. We also discuss…

High Energy Physics - Phenomenology · Physics 2013-12-25 Johannes Schlenk , Gudrun Heinrich , Jan Winter

We present updated predictions for the total production cross section of top-quark pairs at the Tevatron and at the LHC, and, at the LHC, of heavy-quark pairs with mass in the range 0.5-2 TeV. For t\bar{t} production at the LHC we also…

High Energy Physics - Phenomenology · Physics 2009-05-08 Matteo Cacciari , Stefano Frixione , Michelangelo L. Mangano , Paolo Nason , Giovanni Ridolfi

We calculate the Next-to-Leading Order (NLO) QCD corrections to Z b anti-b production in hadronic collisions including full bottom-quark mass effects. We present results for the total cross section and the invariant mass distribution of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Febres Cordero , L. Reina , D. Wackeroth

We present new results of next-to-leading order (NLO) electroweak corrections to doubly-polarized cross sections of $W^+W^-$ production at the LHC. The calculation is performed for the leptonic final state of $e^+\mu_e \mu^- \bar{\nu}_\mu$…

High Energy Physics - Phenomenology · Physics 2024-09-26 Thi Nhung Dao , Duc Ninh Le

In this article we present the next-to-leading order QCD predictions for $Wb\bar{b}+n$-jet ($n=0,1,2,3$) production at the Large Hadron Collider with $\sqrt{s}=13$ TeV. We work in the four-flavor number scheme with a non-vanishing…

High Energy Physics - Phenomenology · Physics 2018-02-22 F. R. Anger , F. Febres Cordero , H. Ita , V. Sotnikov