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相关论文: NLO-QCD corrections to $W\gamma j$ production

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We consider the production of W bosons in hadron collisions, and the subsequent leptonic decay W->lnu_l. We study the asymmetry between the rapidity distributions of the charged leptons, and we present its computation up to the…

高能物理 - 唯象学 · 物理学 2015-05-18 S. Catani , G. Ferrera , M. Grazzini

We study QCD corrections for the associated production of a single top quark and a photon ($tq\gamma$ production) at hadron colliders. We calculate the NLO cross section at LHC and future collider energies for a variety of kinematical cuts,…

高能物理 - 唯象学 · 物理学 2022-08-08 Nikolaos Kidonakis , Nodoka Yamanaka

Next-to-leading order QCD corrections to the QCD-induced $pp \rightarrow l^+l^- \gamma j j +X$ and $pp \rightarrow \bar{\nu}_l \nu_l \gamma jj+X$ processes are presented. The latter is used to find an optimal cut to reduce the contribution…

高能物理 - 唯象学 · 物理学 2014-07-31 Francisco Campanario , Matthias Kerner , Le Duc Ninh , Dieter Zeppenfeld

The process $p p \to Z \gamma + X \to \ell^- \ell^+ \gamma + X$, where $\ell$ denotes a lepton, is calculated to order $\alpha_s$. Total and differential cross sections, with acceptance cuts imposed on the leptons and photon, are given for…

高能物理 - 唯象学 · 物理学 2009-10-28 J. Ohnemus

We compute the O(alpha_s^2) QCD corrections to the fully differential cross-section pp \to W X \to l \nu X, retaining all effects from spin correlations. The knowledge of these corrections makes it possible to calculate with high precision…

高能物理 - 唯象学 · 物理学 2008-11-26 Kirill Melnikov , Frank Petriello

The process $p \pbar \rightarrow W^{\pm}\gamma + X \rightarrow \ell^\pm \nu \gamma + X$ is calculated to ${\cal O}(\alpha_s)$ for general $CP$ conserving $WW\gamma$ couplings. At the Tevatron center of mass energy, the QCD corrections to…

高能物理 - 唯象学 · 物理学 2009-10-22 U. Baur , T. Han , J. Ohnemus

The next-to-leading order QCD corrections to W gamma production in association with two jets via vector boson fusion are calculated, including the leptonic decay of the W with full off-shell effects and spin correlations. The process lends…

高能物理 - 唯象学 · 物理学 2014-01-15 Francisco Campanario , Nicolas Kaiser , Dieter Zeppenfeld

Top-antitop quark pairs belong to the most abundantly produced and precisely measurable heavy-particle signatures at hadron colliders and allow for crucial tests of the Standard Model and new-physics searches. Here we report on the…

高能物理 - 唯象学 · 物理学 2011-06-22 A. Denner , S. Dittmaier , S. Kallweit , S. Pozzorini

The calculation of NLO QCD corrections to the $t\bar{t}\to W^{+}W^{-}b\bar{b}\to e^{+}\nu_e \mu^{-}\bar{\nu}_{\mu}b\bar{b}$ process with complete off-shell effects, is briefly summarized. Besides the total cross section and its scale…

高能物理 - 唯象学 · 物理学 2011-11-24 Malgorzata Worek

We consider QCD radiative corrections to $W^+W^-$ production at the LHC and present the first fully differential predictions for this process at next-to-next-to-leading order (NNLO) in perturbation theory. Our computation consistently…

高能物理 - 唯象学 · 物理学 2016-09-21 Massimiliano Grazzini , Stefan Kallweit , Stefano Pozzorini , Dirk Rathlev , Marius Wiesemann

We compute the NLO QCD corrections to the loop-induced gluon fusion contribution in $W^+W^-$ production at the LHC. We consider the full leptonic process $pp\to \ell^+\ell^{\prime\, -}\nu_{\ell}{\bar\nu}_{\ell^\prime}+X$, by including…

高能物理 - 唯象学 · 物理学 2020-04-01 Massimiliano Grazzini , Stefan Kallweit , Marius Wiesemann , Jeong Yeon Yook

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…

高能物理 - 唯象学 · 物理学 2022-11-15 Ansgar Denner , Giovanni Pelliccioli

We present a computation of the O(alpha_s) QCD corrections to W^\pm Z \gamma production at the Large Hadron Collider. The photon is considered as real, and we include full leptonic decays for the W and Z bosons. Based on the structure of…

高能物理 - 唯象学 · 物理学 2011-02-03 G. Bozzi , F. Campanario , M. Rauch , H. Rzehak , D. Zeppenfeld

We give an overview of our calculation of the next-to-next-to-leading order (NNLO) QCD corrections to W + jet production in hadronic collisions. Phenomenological results for multiple differential distributions are compared to CMS data for 8…

高能物理 - 唯象学 · 物理学 2018-07-25 Aude Gehrmann-De Ridder , Thomas Gehrmann , Nigel Glover , Alexander Huss , Duncan Walker

A fully differential calculation of the next-to-leading order QCD corrections to the production of Z-boson pairs in association with a hard jet at the Tevatron and LHC is presented. This process is an important background for Higgs particle…

高能物理 - 唯象学 · 物理学 2014-11-20 T. Binoth , T. Gleisberg , S. Karg , N. Kauer , G. Sanguinetti

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…

高能物理 - 唯象学 · 物理学 2014-11-20 B. Jager

We present the QCD radiative corrections to the full off-shell $\rm t\bar{t}W^+$ production, considering a final state with three charged leptons, two b jets and missing energy. All interferences, off-shell effects and spin correlations are…

高能物理 - 唯象学 · 物理学 2020-12-16 Ansgar Denner , Giovanni Pelliccioli

The processes $p p \rightarrow V_1 V_2 + X \rightarrow \ell_1 \bar \ell_1 \ell_2 \bar \ell_2 + X$, where $V_i = W^{\pm}$ or $Z$ and $\ell_i$ denotes a lepton, are calculated to ${\cal O}(\alpha_s)$. Total and differential cross sections,…

高能物理 - 唯象学 · 物理学 2011-05-05 J. Ohnemus

We consider the production of $Z\gamma$ pairs at hadron colliders. We report on the first complete and fully differential computation of radiative corrections at next-to-next-to-leading order in QCD perturbation theory. We present selected…

高能物理 - 唯象学 · 物理学 2015-06-17 M. Grazzini , S. Kallweit , D. Rathlev , A. Torre

We calculate the next-to-leading order(NLO) QCD corrections to the $WH^0$ production in association with a jet at hadron colliders. We study the impacts of the complete NLO QCD radiative corrections to the integrated cross sections, the…

高能物理 - 唯象学 · 物理学 2015-03-17 Su Ji-Juan , Ma Wen-Gan , Zhang Ren-You , Guo Lei