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We present a study of higher order QCD corrections beyond NLO to processes with electroweak vector bosons. We focus on the regions of high transverse momenta of commonly used differential distributions. We employ the LoopSim method,…

High Energy Physics - Phenomenology · Physics 2013-06-11 Sebastian Sapeta

We present a calculation of the NLO QCD corrections for the production of three vector bosons at the LHC, namely Z Z Z, W+ W- Z, W+ Z Z, and W+ W- W+ production. The virtual corrections are computed using the recently proposed method of…

High Energy Physics - Phenomenology · Physics 2009-01-21 T. Binoth , G. Ossola , C. G. Papadopoulos , R. Pittau

We present a complete next to next to leading order QCD corrections to the resonant production of sneutrino and charged slepton at the Tevatron and the Large Hadron Collider within the context of R-parity violating supersymmetric model. We…

High Energy Physics - Phenomenology · Physics 2012-01-06 Swapan K. Majhi , Prakash Mathews , V. Ravindran

We describe the calculation of the next-to-next-to-leading order (NNLO) QCD corrections to isolated photon and photon-plus-jet production, and discuss how the experimental hadron-level photon definition and isolation criteria can be…

High Energy Physics - Phenomenology · Physics 2020-04-29 Xuan Chen , Thomas Gehrmann , Nigel Glover , Marius Höfer , Alexander Huss

We present details of a calculation of the cross section for hadronic top-antitop production in next-to-leading order (NLO) QCD, including the decays of the top and antitop into bottom quarks and leptons. This calculation is based on matrix…

High Energy Physics - Phenomenology · Physics 2012-11-07 Ansgar Denner , Stefan Dittmaier , Stefan Kallweit , Stefano Pozzorini

We consider direct diphoton production in hadron collisions. We compute the next-to-next-to-leading order (NNLO) QCD radiative corrections at the fully-differential level. Our calculation uses the q_T subtraction formalism and it is…

High Energy Physics - Phenomenology · Physics 2012-09-17 Leandro Cieri

NLO-QCD corrections to vector boson pair production via weak boson fusion have recently been calculated and implemented into flexible parton-level Monte-Carlo programs. These allow for the computation of cross sections and kinematical…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Jager , C. Oleari , D. Zeppenfeld

The VBFNLO program package is a collection of Monte Carlo programs for the calculation of NLO QCD corrections to vector boson fusion cross sections, double and triple vector boson production, or the production of two electroweak bosons in…

High Energy Physics - Phenomenology · Physics 2011-02-18 Dieter Zeppenfeld , G. Bozzi , F. Campanario , C. Englert , V. Hankele , S. Platzer , B. Jager , C. Oleari , M. Spannowsky , M. Worek

In this contribution recent results regarding the NLO electroweak corrections for vector boson production in association with jets are presented. Besides discussing the phenomenology of the fixed-order results, their corporation in existing…

High Energy Physics - Phenomenology · Physics 2016-09-07 Marek Schönherr , Stefan Kallweit , Jonas M. Lindert , Stefano Pozzorini , Philipp Maierhöfer

We calculate the next-to-leading order (NLO) QCD corrections to the $J/\psi +W$ production at the LHC, and provide the theoretical distribution of the $J/\psi$ transverse momentum. Our results show that the differential cross section…

High Energy Physics - Phenomenology · Physics 2011-02-25 Li Gang , Song Mao , Zhang Ren-You , Ma Wen-Gan

We present the calculation of the cross section for Higgs boson production in association with a top quark pair plus one jet, at next-to-leading-order (NLO) accuracy in QCD. All mass dependence is retained without recurring to any…

High Energy Physics - Phenomenology · Physics 2014-11-19 Hans van Deurzen , Gionata Luisoni , Pierpaolo Mastrolia , Edoardo Mirabella , Giovanni Ossola , Tiziano Peraro

We present the next-to-next-to-leading order (NNLO) corrections to the total cross section for (pseudo-) scalar Higgs boson production using an alternative method than those used in previous calculations. All QCD partonic subprocesses have…

High Energy Physics - Phenomenology · Physics 2011-05-05 V. Ravindran , J. Smith , W. L. van Neerven

We present the first analytical results for the ${\cal O}(\alpha\alpha_s)$ corrections to the total cross section for the inclusive production of an on-shell $Z$ boson at hadron colliders. We include the complete set of contributions, with…

High Energy Physics - Phenomenology · Physics 2020-07-14 Roberto Bonciani , Federico Buccioni , Narayan Rana , Alessandro Vicini

The first results on the complete next-to-next-to-leading order (NNLO) Quantum Chromodynamic (QCD) corrections to the production of di-leptons at hadron colliders in large extra dimension models with spin-2 particles are reported in this…

High Energy Physics - Phenomenology · Physics 2018-10-29 Taushif Ahmed , Pulak Banerjee , Prasanna K. Dhani , M. C. Kumar , Prakash Mathews , Narayan Rana , V. Ravindran

We present the cross section for production of a Z boson in association with four jets at the Large Hadron Collider, at next-to-leading order in the QCD coupling. When the Z decays to neutrinos, this process is a key irreducible background…

High Energy Physics - Phenomenology · Physics 2013-03-20 H. Ita , Z. Bern , L. J. Dixon , F. Febres Cordero , D. A. Kosower , D. Maitre

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

In this paper, we study the next-to-next-to-leading-order (NNLO) QCD corrections for the process $e^+e^- \to J/\psi+J/\psi$ at the $B$ factories. By including the NNLO corrections, the cross section turns negative due to the poor…

High Energy Physics - Phenomenology · Physics 2024-02-13 Xu-Dong Huang , Bin Gong , Rui-Chang Niu , Huai-Min Yu , Jian-Xiong Wang

We investigate the process $pp \rightarrow HZ\gamma + X$ at the $\sqrt{s}=14~{\rm TeV}$ LHC up to the QCD next-to-leading order (NLO), and discuss the kinematic distributions of final products after on-shell Higgs and $Z$-boson decays by…

High Energy Physics - Phenomenology · Physics 2015-05-14 Xiong Shou-Jian , Ma Wen-Gan , Guo Lei , Zhang Ren-You , Chen Chong , Song Mao

In this paper we present a next-to-next-to-leading order (NNLO) QCD calculation of the processes $pp\rightarrow l^+l^-\gamma$ and $pp\rightarrow \nu\bar\nu\gamma$ that we have implemented in MCFM. Our calculation includes QCD corrections at…

High Energy Physics - Phenomenology · Physics 2018-01-17 John M. Campbell , Tobias Neumann , Ciaran Williams

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