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We calculate the next-to-leading order QCD corrections to the `direct' part of the spin-dependent cross section for single-inclusive charged-hadron photoproduction. This process could be studied experimentally in future polarized…

High Energy Physics - Phenomenology · Physics 2011-07-19 D. de Florian , W. Vogelsang

The foreseen luminosities for the next LHC runs will enable precise differential measurements of the associated production of top-antitop pairs with a W boson. Therefore, providing accurate theory predictions for this process is needed for…

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

In this talk we discuss the implementation of the full next-to-leading order QCD corrections to electroweak Higgs boson plus three jet production at the LHC within the Matchbox framework of the Herwig++ event generator. We also present…

High Energy Physics - Phenomenology · Physics 2014-07-29 Francisco Campanario , Terrance M. Figy , Simon Plätzer , Malin Sjodahl

We present the next-to-leading order QCD corrections to the production of a photon pair in association with one or two jets. This class of processes constitutes an important background for Higgs physics at the LHC. For the one jet process…

High Energy Physics - Phenomenology · Physics 2013-11-20 Thomas Gehrmann , Nicolas Greiner , Gudrun Heinrich

We calculated the next-to-leading order (NLO) QCD corrections to the cross sections for direct top quark productions induced by model--independent flavour changing neutral current couplings at hadron colliders. The NLO results increase the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Jian Jun Liu , Chong Sheng Li , Li Lin Yang , Li Gang Jin

Triboson production processes play a crucial role in probing the electroweak sector of the Standard Model, as they involve quartic gauge-boson couplings already at the tree level. With these measurements entering the precision era at the…

High Energy Physics - Phenomenology · Physics 2025-11-26 Paolo Garbarino , Massimiliano Grazzini , Stefan Kallweit , Chiara Savoini

We present the calculation of the NLO QCD corrections to the associated production of a Higgs boson and two jets, in the infinite top-mass limit. We discuss the technical details of the computation and we show the numerical impact of the…

High Energy Physics - Phenomenology · Physics 2013-05-28 H. van Deurzen , N. Greiner , G. Luisoni , P. Mastrolia , E. Mirabella , G. Ossola , T. Peraro , J. F. von Soden-Fraunhofen , F. Tramontano

We investigate the next-to-next-to-leading order (NNLO) QCD radiative corrections to the pion electromagnetic form factor with large momentum transfer. We explicitly verify the validity of the collinear factorization to two-loop order for…

High Energy Physics - Phenomenology · Physics 2024-08-01 Long-Bin Chen , Wen Chen , Feng Feng , Yu Jia

We propose an implementation of ZZ, ZZj and ZZjj productions in MadGraph5_aMC@NLO framework at $\sqrt{s}$ = 14 TeV. We calculate these processes at leading order and next-to-leading order with QCD corrections and we present a theoretical…

High Energy Physics - Phenomenology · Physics 2020-12-09 K. Djamaa , A. Mohamed-Meziani

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

We compute the ${\cal O}(\alpha^2\alpha_s^2)$ perturbative corrections to inclusive jet production in electron-nucleon collisions. This process is of particular interest to the physics program of a future Electron Ion Collider (EIC). We…

High Energy Physics - Phenomenology · Physics 2016-10-28 Gabriel Abelof , Radja Boughezal , Xiaohui Liu , Frank Petriello

We present a calculation of next-to-leading order QCD corrections to gamma jj production via weak-boson fusion at a hadron collider in the form of a flexible parton-level Monte Carlo program which allows us to study cross sections and…

High Energy Physics - Phenomenology · Physics 2014-11-20 B. Jager

In this talk, we discuss the next-to-leading order (NLO) QCD corrections to the associated production of the vector gauge boson (Z/W\pm) and the graviton in the large extra dimension model, namely the ADD model, at the LHC. After a brief…

High Energy Physics - Phenomenology · Physics 2012-01-10 M. C. Kumar , Prakash Mathews , V. Ravindran , Satyajit Seth

We present the implementation of several processes at Next-to-Next-to Leading Order (NNLO) accuracy in QCD in the parton-level Monte Carlo program MCFM. The processes treated are $pp\to H$, $W^\pm$, $Z$, $W^\pm H$, $ZH$, $W^\pm\gamma$,…

High Energy Physics - Phenomenology · Physics 2022-07-29 John M. Campbell , R. Keith Ellis , Satyajit Seth

We study the production of the four-lepton final state $l^+ l^- l^+ l^-$, predominantly produced by a pair of electroweak Z bosons, ZZ. Using the LoopSim method, we merge NLO QCD results for ZZ and ZZ+jet and obtain approximate NNLO…

High Energy Physics - Phenomenology · Physics 2015-09-30 Francisco Campanario , Michael Rauch , Sebastian Sapeta

The $J/\psi+Z^0$ associated production at the LHC is an important process in investigating the color-octet mechanism of non-relativistic QCD in describing the processes involving heavy quarkonium. We calculate the next-to-leading order…

High Energy Physics - Phenomenology · Physics 2012-11-20 Song Mao , Ma Wen-Gan , Li Gang , Zhang Ren-You , Guo Lei

We present a subtraction scheme for computing jet cross sections in electron-positron annihilation at next-to-next-to-leading order accuracy in perturbative QCD. In this first part we deal with the regularization of the doubly-real…

High Energy Physics - Phenomenology · Physics 2010-10-27 Gabor Somogyi , Zoltan Trocsanyi , Vittorio Del Duca

We investigate the next-to-leading logarithmic (NLL) order contributions of the quantum chromodynamics (QCD) for exclusive processes evaluated by Monte Carlo methods. Ambiguities of the Monte Carlo calculation based on the…

High Energy Physics - Phenomenology · Physics 2011-12-06 Hidekazu Tanaka

This talk expands on recently published results for the factorising next-to-next-to-leading order (NNLO) QCD corrections to Higgs boson production in the vector boson fusion (VBF) channel. The calculation is fully differential in the…

High Energy Physics - Phenomenology · Physics 2018-07-23 Juan Cruz-Martinez , Nigel Glover , Thomas Gehrmann , Alexander Huss

Based on the framework of nonrelativistic Quantum Chromodynamics (NRQCD), we carry out next-to-leading order (NLO) QCD corrections to the decay of $Z$ boson into $\chi_c$ and $\chi_b$, respectively. The branching ratio of $Z \to…

High Energy Physics - Phenomenology · Physics 2019-05-15 Zhan Sun , Hong-Fei Zhang