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We compute the next-to-leading order corrections in $\alpha_s$ to prompt diphoton production in association with a jet at hadron colliders. We use a next-to-leading order general-purpose partonic Monte Carlo event generator that allows the…

High Energy Physics - Phenomenology · Physics 2009-11-10 Vittorio Del Duca , Fabio Maltoni , Zoltan Nagy , Zoltan Trocsanyi

We report on a calculation of the `mixed' strong and (purely) weak corrections through the order $\alpha_{\mathrm{S}}^2\alpha_{\mathrm{W}}$ to parton-parton processes in all possible channels at hadron colliders entering the single jet…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Moretti , M. R. Nolten , D. A. Ross

Four-fermion processes with a particle lost in the beam pipe are studied at LEP to perform precision tests of the electroweak theory. Leading higher-order QED corrections to such processes are analyzed within the framework of the Structure…

High Energy Physics - Phenomenology · Physics 2009-01-07 G. Montagna , M. Moretti , O. Nicrosini , A. Pallavicini , F. Piccinini

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 O(alpha) virtual weak radiative corrections to many hadron collider processes are known to become large and negative at high energies, due to the appearance of Sudakov-like logarithms. At the same order in perturbation theory, weak…

High Energy Physics - Phenomenology · Physics 2008-11-26 U. Baur

${\cal KK}$MC-hh is a precision event-generator for Z production and decay in hadronic collisions, which applies amplitude-level resummation to both initial and final state photon radiation, including perturbative residuals exact through…

High Energy Physics - Phenomenology · Physics 2018-11-26 B. F. L. Ward , S. Jadach , Z. Was , S. A. Yost

For the Run 2 of the LHC next-to-leading order electroweak corrections will play an important role. Even though they are typically moderate at the level of total cross sections they can lead to substantial deviations in the shapes of…

High Energy Physics - Phenomenology · Physics 2016-04-06 Mauro Chiesa , Nicolas Greiner , Francesco Tramontano

A precise determination of the W boson mass at the Fermilab Tevatron requires a theoretical calculation in which the effects of the initial-state multiple soft-gluon emission and the final-state photonic correction are simultaneously…

High Energy Physics - Phenomenology · Physics 2011-03-23 Qing-Hong Cao , C. -P. Yuan

The investigation of weak bosons $V$ ($V=\mathrm{W}^{\pm}$, $\mathrm{Z}$) produced with or without associated hard QCD jets will be of great phenomenological interest at the LHC. Owing to the large cross sections and the clean decay…

High Energy Physics - Phenomenology · Physics 2010-12-01 A. Denner , S. Dittmaier , T. Kasprzik , A. Mück

Radiative effects in the electroproduction of photons in polarized $ep$-scattering are calculated with the next-to-leading (NLO) accuracy. The contributions of loops and two photon emission were presented in analytical form. The covariant…

High Energy Physics - Phenomenology · Physics 2014-08-06 Igor Akushevich , Alexander Ilyichev , Nikolai M. Shumeiko

In TeV scale gravity models, for dilepton production at hadron colliders, we present the NLO-QCD corrections for the double differential cross section in the invariant mass and scattering angle. For both ADD and RS models, the quantitative…

High Energy Physics - Phenomenology · Physics 2008-11-26 Prakash Mathews , V. Ravindran

Electroweak (EW) corrections at the LHC can be enhanced at high energies due to soft/collinear radiation of W and Z bosons, being dominated by Sudakov-like corrections in the form of $\alpha_W^l\log^n(Q^2/M_W^2)$ $(n \le 2l, \alpha_W =…

High Energy Physics - Phenomenology · Physics 2015-08-26 John M. Campbell , Doreen Wackeroth , Jia Zhou

We report on recently computed mixed QCD-electroweak corrections to on-shell $W$ and $Z$ boson production. We use these differential predictions to estimate their impact on the $W$ boson mass determination at the LHC.

High Energy Physics - Phenomenology · Physics 2021-11-30 Arnd Behring

We present the production cross section for a lepton-neutrino pair at the Large Hadron Collider computed at next-to-next-to-next-to leading order (N3LO) in QCD perturbation theory. We compute the partonic coefficient functions of a virtual…

High Energy Physics - Phenomenology · Physics 2020-12-30 Claude Duhr , Falko Dulat , Bernhard Mistlberger

In this article, we discuss about the Drell-Yan process focusing on the computation of radiative corrections for vector boson production. First, we describe the $q_T$-resummation formalism and its application to obtain higher-order QCD…

High Energy Physics - Phenomenology · Physics 2019-08-07 German F. R. Sborlini

The Drell-Yan mechanism for the production of lepton pairs is one of the most basic processes for physics studies at hadron colliders. It is therefore important to have accurate theoretical predictions. In this work we compute the two-loop…

High Energy Physics - Phenomenology · Physics 2013-05-30 William B. Kilgore , Christian Sturm

The W boson mass measurement is sensitive to QED radiative corrections due to virtual photon loops and real photon emission. The largest shift in the measured mass, which depends on the transverse momentum spectrum of the charged lepton…

High Energy Physics - Phenomenology · Physics 2015-10-09 A. V. Kotwal , B. Jayatilaka

Drell-Yan lepton pairs produced in the process $p \bar{p} \rightarrow \ell^+\ell^- + X$ through an intermediate $\gamma^*/Z$ boson have an asymmetry in their angular distribution related to the spontaneous symmetry breaking of the…

High Energy Physics - Experiment · Physics 2018-07-11 CDF Collaboration , D0 Collaboration

The production of a neutral and a charged vector boson with subsequent decays into three charged leptons and a neutrino is a very important process for precision tests of the Standard Model of elementary particles and in searches for…

High Energy Physics - Phenomenology · Physics 2017-10-25 Benedikt Biedermann , Ansgar Denner , Lars Hofer

Drell-Yan-like W-boson and Z-boson production in the resonance region allows for high-precision measurements that are crucial to carry experimental tests of the Standard Model to the extremes, such as the determination of the W-boson mass…

High Energy Physics - Phenomenology · Physics 2015-06-19 Stefan Dittmaier , Alexander Huss , Christian Schwinn