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相关论文: NNLO QCD study of polarised $W^+ W^-$ production a…

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We discuss new diffractive mechanism of central exclusive production of $W^+W^-$ pairs in proton-proton collisions at the LHC. We include diagrams with intermediate virtual Higgs boson as well as quark box diagrams. Several observables…

高能物理 - 唯象学 · 物理学 2015-06-04 Piotr Lebiedowicz , Roman Pasechnik , Antoni Szczurek

Extracting longitudinal modes of weak bosons in LHC processes is essential to understand the electroweak-symmetry-breaking mechanism. To that end, we propose a general method, based on wide neural networks, to properly model…

高能物理 - 唯象学 · 物理学 2024-01-24 Michele Grossi , Massimiliano Incudini , Mathieu Pellen , Giovanni Pelliccioli

In the framework of the littlest Higgs model with $T$ parity, we study the $W_H/Z_H+q_-$ and $W_H$-pair productions at the CERN Large Hadron Collider up to the QCD next-to-leading order (NLO). The kinematic distributions of final decay…

高能物理 - 唯象学 · 物理学 2014-06-11 Guo Lei , Zhang Ren-You , Ma Wen-Gan

We report on the calculation of the next-to-leading order QCD corrections to the production of W-boson pairs in association with a hard jet at the Tevatron and the LHC, which is an important source of background for Higgs and new-physics…

高能物理 - 唯象学 · 物理学 2009-11-18 S. Dittmaier , S. Kallweit , P. Uwer

In this paper we present the full NLO QCD + NLO EW corrections to the $Z$-boson pair production in association with a hard jet at the LHC. The subsequent $Z$-boson leptonic decays are included by adopting both the naive NWA and MadSpin…

高能物理 - 唯象学 · 物理学 2016-07-27 Wang Yong , Zhang Ren-You , Ma Wen-Gan , Li Xiao-Zhou , Guo Lei

After the discovery of a Higgs boson in 2012 at the CERN Large Hadron Collider (LHC) the detailed study of its properties, and most importantly its couplings to other particles, has started. This is a very important task to be completed, in…

高能物理 - 唯象学 · 物理学 2016-03-08 Julien Baglio

Highlights of ATLAS and CMS measurements involving the production of heavy electroweak gauge bosons, W and Z, at the LHC are presented. Cross sections of single W and Z bosons are studied with very high precision and differential in various…

高能物理 - 实验 · 物理学 2012-07-19 Jan Kretzschmar

Elements of the spin density matrix for W bosons in e+e- -> W+W- -> qqln events are measured from data recorded by the OPAL detector at LEP. This information is used calculate polarised differential cross-sections and to search for…

高能物理 - 实验 · 物理学 2008-11-26 The OPAL collaboration , G. Abbiendi

Higgs boson pair production in the massless quark-antiquark channel proceeds at leading order (LO) via electroweak boson loops. We calculate the next-to-leading order QCD corrections to this process. For the corresponding two-loop…

高能物理 - 唯象学 · 物理学 2026-01-26 Marco Bonetti , Gudrun Heinrich , Philipp Rendler , William J. Torres Bobadilla

We present results of a computation of NLO QCD corrections to the production of an off-shell top--antitop pair in association with an off-shell $\text{W}^+$ boson in proton--proton collisions. As the calculation is based on the full matrix…

高能物理 - 唯象学 · 物理学 2021-05-21 Ansgar Denner , Giovanni Pelliccioli

We calculate the NNLO QCD corrections to diphoton production with an additional jet at the LHC. Our calculation represents the first NNLO-accurate prediction for the transverse momentum distribution of the diphoton system. The improvement…

高能物理 - 唯象学 · 物理学 2021-12-08 Herschel A. Chawdhry , Michal Czakon , Alexander Mitov , Rene Poncelet

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…

高能物理 - 唯象学 · 物理学 2012-11-20 Song Mao , Ma Wen-Gan , Li Gang , Zhang Ren-You , Guo Lei

We present the total cross sections at next-to-next-to-leading order (NNLO) in the strong coupling for single and double charged Higgs production via weak boson fusion. Results are obtained via the structure function approach, which builds…

高能物理 - 唯象学 · 物理学 2011-10-06 Marco Zaro , Paolo Bolzoni , Fabio Maltoni , Sven-Olaf Moch

This Letter presents the first study of the energy-dependence of diboson polarization fractions in $WZ \rightarrow \ell\nu \ell'\ell'~(\ell, \ell'=e, \mu)$ production. The data set used corresponds to an integrated luminosity of 140…

高能物理 - 实验 · 物理学 2024-10-21 ATLAS Collaboration

We present the full NLO QCD corrections to the production of a W^+W^- pair in association with two jets in hadronic collisions, which is an important background to New Physics and Higgs boson searches. We include leptonic decays of the…

高能物理 - 唯象学 · 物理学 2015-06-04 N. Greiner , G. Heinrich , P. Mastrolia , G. Ossola , T. Reiter , F. Tramontano

We consider the production of prompt-photon pairs at the LHC and we report on a study of QCD radiative corrections up to the next-to-next-to-leading order (NNLO). We present a detailed comparison of next-to-leading order (NLO) results…

高能物理 - 唯象学 · 物理学 2018-05-23 Stefano Catani , Leandro Cieri , Daniel de Florian , Giancarlo Ferrera , Massimiliano Grazzini

We present the full next-to-leading order (NLO) corrected inclusive cross section $d^3\Delta \sigma/dQ^2/dy/dp_T$ for massive lepton pair production in longitudinally polarized proton-proton collisions $p + p\to l^+l^- + 'X'$. Here $'X'$…

高能物理 - 唯象学 · 物理学 2010-04-05 V. Ravindran , J. Smith , W. L. van Neerven

Precision tests of the Standard Model (SM) require not only accurate experiments, but also precise and reliable theoretical predictions. Triple vector boson production provides a unique opportunity to investigate the quartic gauge couplings…

高能物理 - 唯象学 · 物理学 2016-11-08 Shen Yong-Bai , Zhang Ren-You , Ma Wen-Gan , Li Xiao-Zhou , Zhang Yu , Guo Lei

Triple-W-boson production in proton-proton collisions allows for a direct access to the triple and quartic gauge couplings and provides a window to the mechanism of electroweak symmetry breaking. It is an important process to test the…

高能物理 - 唯象学 · 物理学 2017-09-20 Stefan Dittmaier , Alexander Huss , Gernot Knippen

We present the NNLO calculation for single-inclusive jet production in polarized DIS $\vec{e}\vec{p} \rightarrow {\rm jet} +X$. We perform the computation based on the Projection-to-Born method by combining our recent NLO result for di-jet…

高能物理 - 唯象学 · 物理学 2020-08-26 Ignacio Borsa , Daniel de Florian , Iván Pedron