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相关论文: NLO QCD predictions for $Z+\gamma$ + jets producti…

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We carry out a detailed calculations of W+jets production in Pb+Pb collisions at the Large Hadron Collider (LHC). In our calculations, the production of W+jet in p+p reference is obtained from Sherpa, which matches next-to-leading-order…

高能物理 - 唯象学 · 物理学 2020-10-01 Shan-Liang Zhang , Xin-Nian Wang , Ben-Wei Zhang

We carry out the first detailed calculations of jet production associated with $W$ gauge bosons in Pb+Pb collisions at the Large Hadron Collider (LHC). In our calculations, the production of $W$+jet in p+p collisions as a reference is…

高能物理 - 唯象学 · 物理学 2022-05-11 Shan-Liang Zhang , Xin-Nian Wang , Ben-Wei Zhang

Differential cross-section measurements of $Z\gamma$ production in association with hadronic jets are presented, using the full 139 fb$^{-1}$ dataset of $\sqrt{s}=13$ TeV proton-proton collisions collected by the ATLAS detector during Run 2…

高能物理 - 实验 · 物理学 2023-08-11 ATLAS Collaboration

We present a novel next-to-next-to-leading order (NNLO) QCD calculation matched to parton shower for the production of a pair of $Z$ bosons decaying to four massless leptons, $p p \to \ell^+ \ell^- \ell'^+ \ell'^- + X$, at the LHC. Spin…

We present the first calculation of next-to-leading order QCD corrections to QCD-induced ZZ production in association with two jets at hadron colliders. Both Z bosons decay leptonically with all off-shell effects, virtual photon…

高能物理 - 唯象学 · 物理学 2015-07-15 Francisco Campanario , Matthias Kerner , Le Duc Ninh , Dieter Zeppenfeld

In this publication, an algorithm is presented that combines the ME+PS approach to merge sequences of tree-level matrix elements into inclusive event samples with the POWHEG method, which combines exact next-to-leading order matrix element…

高能物理 - 唯象学 · 物理学 2011-08-31 Stefan Hoeche , Frank Krauss , Marek Schonherr , Frank Siegert

In this article we generalise POWHEG next-to-leading order parton shower (NLOPS) simulations of vector boson production and vector boson production in association with a single jet, to give matrix element corrected MENLOPS simulations. In…

高能物理 - 唯象学 · 物理学 2015-05-30 Simone Alioli , Keith Hamilton , Emanuele Re

We present numerical results for the production of a $W^+W^-$ pair in association with a jet at the LHC in QCD at next-to-leading order (NLO). We include effects of the decay of the massive vector bosons into leptons with spin correlations…

高能物理 - 唯象学 · 物理学 2009-04-17 John M. Campbell , R. Keith Ellis , G. Zanderighi

Providing accurate theoretical predictions in the Standard Model for processes with polarised electroweak bosons is crucial to understand more in-depth the electroweak-symmetry breaking mechanism and to enhance the sensitivity to potential…

The computation of the NLO QCD corrections to the cross sections for W+W- gamma and ZZgamma production in hadronic collisions is presented. We consider the case of a real photon in the final state, but include full leptonic decays of the W…

高能物理 - 唯象学 · 物理学 2014-11-20 G. Bozzi , F. Campanario , V. Hankele , D. Zeppenfeld

We present next-to-leading order predictions for final states containing leptons produced through the decay of a Z boson in association with either a photon and a jet, or a pair of photons. The effect of photon radiation from the final…

高能物理 - 唯象学 · 物理学 2015-06-11 John M. Campbell , Heribertus B. Hartanto , Ciaran Williams

We consider $Z \gamma$ production in hadronic collisions and present the first computation of next-to-next-to-leading order accurate predictions consistently matched to parton showers (NNLO+PS). Spin correlations, interferences and…

高能物理 - 唯象学 · 物理学 2021-07-07 Daniele Lombardi , Marius Wiesemann , Giulia Zanderighi

We perform a detailed study of NLO parton shower matching uncertainties in Higgs boson pair production through gluon fusion at the LHC based on a generic and process independent implementation of NLO subtraction and parton shower matching…

高能物理 - 唯象学 · 物理学 2018-04-04 Stephen Jones , Silvan Kuttimalai

We report a systematic study of Z+jet correlation in Pb+Pb collisions at the LHC by combining the next-leading-order matrix elements calculations with matched parton shower in Sherpa for the initial Z+jet production, and Linear Boltzmann…

核理论 · 物理学 2019-02-20 Shan-Liang Zhang , Tan Luo , Xin-Nian Wang , Ben-Wei Zhang

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

高能物理 - 唯象学 · 物理学 2015-04-07 Massimiliano Grazzini , Stefan Kallweit , Dirk Rathlev

We present the first NLO QCD+EW predictions for Higgs boson production in association with a l nu or l+ l- pair plus zero or one jets at the LHC. Fixed-order NLO QCD+EW calculations are combined with a QCD+QED parton shower using the…

高能物理 - 唯象学 · 物理学 2017-09-20 Federico Granata , Jonas M. Lindert , Carlo Oleari , Stefano Pozzorini

We compute the next-to-leading order QCD corrections to WZ+jet production at the Tevatron and the LHC, including decays of the electroweak bosons to light leptons with all off-shell effects taken into account. The corrections are sizable…

高能物理 - 唯象学 · 物理学 2014-11-21 F. Campanario , C. Englert , S. Kallweit , M. Spannowsky , D. Zeppenfeld

The identification of a hadron in the final state of hadron-collider events that feature a leptonically decaying vector boson can provide essential information on the parton content of the colliding protons. Moreover, the study of hadrons…

高能物理 - 唯象学 · 物理学 2024-10-07 Simone Caletti , Aude Gehrmann-De Ridder , Alexander Huss , Adrian Rodriguez Garcia , Giovanni Stagnitto

We consider the production of Wgamma and Zgamma pairs at the LHC, and report on the fully differential computation of next-to-next-to-leading order (NNLO) corrections in QCD perturbation theory. The calculation includes leptonic…

高能物理 - 唯象学 · 物理学 2016-01-26 Massimiliano Grazzini , Stefan Kallweit , Dirk Rathlev

We give a brief overview of our calculation of the next-to-next-to-leading order (NNLO) QCD corrections to Z+jet production in hadronic collisions. Phenomenological results are presented which comprise various differential distributions for…

高能物理 - 唯象学 · 物理学 2016-07-07 A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , A. Huss , T. A. Morgan