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We compute the QCD corrections at next-to-leading order for the process $gg \rightarrow ZH$, including both the virtual two-loop terms and real-emission contributions. The two-loop box diagrams in the virtual corrections are approximated…

High Energy Physics - Phenomenology · Physics 2022-08-24 Giuseppe Degrassi , Ramona Gröber , Marco Vitti , Xiaoran Zhao

We present the most precise value for the Higgs boson cross-section in the gluon-fusion production mode at the LHC. Our result is based on a perturbative expansion through N$^3$LO in QCD, in an effective theory where the top-quark is…

We present a complete next-to-leading order (NLO) QCD calculation to a heavy resonance production and decay into a top quark pair at the LHC, where the resonance could be either a Randall-Sundrum (RS) Kaluza-Klein (KK) graviton $G$ or an…

High Energy Physics - Phenomenology · Physics 2010-08-16 Jun Gao , Chong Sheng Li , Bo Hua Li , C. -P. Yuan , Hua Xing Zhu

We present updated predictions for the cross-sections for pair production of squarks and gluinos at the LHC Run II. First of all, we update the calculations based on NLO+NLL partonic cross-sections by using the NNPDF3.0NLO global analysis.…

High Energy Physics - Phenomenology · Physics 2016-03-23 Wim Beenakker , Christoph Borschensky , Michael Krämer , Anna Kulesza , Eric Laenen , Simone Marzani , Juan Rojo

We consider QCD radiative corrections to WW pair production in hadron collisions. We perform a calculation that consistently combines next-to-leading order predictions with soft-gluon resummation valid at small transverse momenta ptWW of…

High Energy Physics - Phenomenology · Physics 2009-11-11 M. Grazzini

We present results for top quark production at the Tevatron including next-to-next-to-leading order (NNLO) soft-gluon corrections. We show the stability of the cross section with respect to kinematics choice and scale when the NNLO…

High Energy Physics - Phenomenology · Physics 2014-11-17 Nikolaos Kidonakis , Ramona Vogt

Soft-gluon resummation within the framework of heavy quarkonium hadroproduction is considered. A few selected cases are studied in detail. A sizeable increase of the cross sections with respect to the next-to-leading order predictions with…

High Energy Physics - Phenomenology · Physics 2009-10-31 Matteo Cacciari

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

We present the next-to-leading order QCD corrected total cross sections and the distributions of the transverse momenta of the final anti-bottom-quark, top-quark and charged Higgs-boson for the processes of $p\bar p/pp \to t\bar b H^-+X$ in…

High Energy Physics - Phenomenology · Physics 2014-11-18 Wu Peng , Ma Wen-Gan , Zhang Ren-You , Jiang Yi , Han Liang , Guo Lei

I present approximate next-to-next-to-leading-order (aNNLO) transverse-momentum ($p_T$) distributions in single-top production processes. The aNNLO results are derived from next-to-next-to-leading-logarithm (NNLL) resummation of soft-gluon…

High Energy Physics - Phenomenology · Physics 2016-03-23 Nikolaos Kidonakis

Motivated by ongoing new physics searches in the top-quark sector at the Large Hadron Collider we report on the calculation of NLO QCD corrections to the Standard Model $pp\to t\bar{t}Z+X$ process in the tetra-lepton decay channel. This…

High Energy Physics - Phenomenology · Physics 2022-08-09 Giuseppe Bevilacqua , Heribertus Bayu Hartanto , Manfred Kraus , Jasmina Nasufi , Malgorzata Worek

We present the first next-to-next-to-next-to-leading order (N$^3$LO) calculation of the twist-2 matching coefficients for transverse momentum dependent (TMD) quark transversity parton distribution and fragmentation functions in QCD. This…

High Energy Physics - Phenomenology · Physics 2026-02-03 Yu Jiao Zhu

I present theoretical calculations of $t{\bar t}$ production cross sections through aN$^3$LO in proton-proton collisions. I show that soft-gluon corrections dominate the perturbative expansion not only for LHC energies but also for future…

High Energy Physics - Phenomenology · Physics 2022-03-09 Nikolaos Kidonakis

We consider QCD radiative corrections to the production of colourless high-mass systems in hadron collisions. We show that the recent computation of the soft-virtual corrections to Higgs boson production at N$^3$LO [1] together with the…

High Energy Physics - Phenomenology · Physics 2015-06-19 S. Catani , L. Cieri , D. de Florian , G. Ferrera , M. Grazzini

We study the production of W bosons at large transverse momentum in pp collisions at the Large Hadron Collider (LHC). We calculate the complete next-to-leading order (NLO) corrections to the differential cross section. We find that the NLO…

High Energy Physics - Phenomenology · Physics 2008-11-26 Richard J. Gonsalves , Nikolaos Kidonakis , Agustin Sabio Vera

We calculate a comprehensive set of spin correlations and differential distributions in top-quark pair production and decay to dilepton final states. This is the first time such a complete study is performed at next-to-next-to leading order…

High Energy Physics - Phenomenology · Physics 2023-01-11 Michal Czakon , Alexander Mitov , Rene Poncelet

I calculate the top quark forward-backward asymmetry at the Tevatron in both the laboratory frame and the $t{\bar t}$ rest frame. I show that soft-gluon corrections are the dominant contribution to the asymmetry and closely approximate…

High Energy Physics - Phenomenology · Physics 2015-04-13 Nikolaos Kidonakis

We introduce a new version of the FONLL code, now capable of calculating differential distributions for top quark production with next-to-leading-log resummation of log(p_t/m) terms. Numerical results for LHC and FCC kinematics are…

High Energy Physics - Phenomenology · Physics 2018-09-19 Matteo Cacciari

We construct an approximate expression for the total cross section for the production of a heavy quark-antiquark pair in hadronic collisions at next-to-next-to-next-to-leading order (N$^3$LO) in $\alpha_s$. We use a technique which exploits…

High Energy Physics - Phenomenology · Physics 2015-09-09 Claudio Muselli , Marco Bonvini , Stefano Forte , Simone Marzani , Giovanni Ridolfi

We present a fully-differential and high-precision calculation of top-quark pair-production and decay at the LHC, providing predictions for observables constructed from top-quark leptonic and $b$-flavoured jet final states. The calculation…

High Energy Physics - Phenomenology · Physics 2017-09-20 Jun Gao , Andrew S. Papanastasiou