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We present some results of a new calculation of the O(alpha) electroweak radiative corrections to W boson production at hadron colliders with special emphasis on the transverse mass distribution.

高能物理 - 唯象学 · 物理学 2008-11-26 U. Baur , S. Keller , D. Wackeroth

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

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

This report was prepared in the context of the LPCC "Electroweak Precision Measurements at the LHC WG" and summarizes the activity of a subgroup dedicated to the systematic comparison of public Monte Carlo codes, which describe the…

The quartic gauge boson couplings that identify the strengths of the gauge boson self-interactions are exactly determined by the non-Abelian gauge nature of the Standard Model. The examination of these couplings at $ep$ collisions with high…

高能物理 - 唯象学 · 物理学 2021-08-02 E. Gurkanli , V. Ari , A. A. Billur , M. Köksal

An important mechanism for production of the Higgs boson at the prospective Large Hadron-electron Collider (LHeC) is via neutral current (NC) weak boson fusion (WBF) processes. Aside from its role in measurements of Higgs couplings within…

高能物理 - 唯象学 · 物理学 2023-11-28 Hanying Xiong , Hongsheng Hou , Zhuoni Qian , Qingjun Xu , Bowen Wang

Pair-production and single-production of $W$ bosons provide many opportunities to look for new physics via precision measurements, for instance via scrutinising the involved triple-gauge vertices or by measuring CKM matrix elements in an…

高能物理 - 实验 · 物理学 2024-10-23 Jenny List , Ulrich Einhaus , Andre Filipe Silva , Leonhard Reichenbach

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

The measurement of hadronic activity recoiling against W and Z vector bosons provides an important test of perturbative QCD, as well as a method of searching for new physics in a model independent fashion. We present a study of the…

高能物理 - 实验 · 物理学 2019-08-13 A. Meade , B. Brau

We discuss the expected sensitivity to Z' boson effects in the W^\pm boson pair production process at the Large Hadron Collider (LHC). The results of a model-dependent analysis of Z' boson effects are presented as constraints on the Z-Z'…

高能物理 - 唯象学 · 物理学 2014-10-13 V. V. Andreev , P. Osland , A. A. Pankov

Vector-boson pair production is of great phenomenological importance at the LHC. These processes will help to validate the Standard Model at highest energies, and they may also open the door for the discovery of new physics potentially…

高能物理 - 唯象学 · 物理学 2012-08-17 Anastasiya Bierweiler , Tobias Kasprzik , Johann H. Kuhn

This paper describes measurements of the transverse momentum spectra of $W$ and $Z$ bosons produced in proton-proton collisions at centre-of-mass energies of $\sqrt{s}=5.02$ TeV and $\sqrt{s}=13$ TeV with the ATLAS experiment at the Large…

高能物理 - 实验 · 物理学 2024-11-14 ATLAS Collaboration

In this contribution we present our recent computation of the NNLO QCD corrections to the production of a Higgs boson associated with a top-antitop quark pair. This process is of great importance since it allows for a direct measurement of…

高能物理 - 唯象学 · 物理学 2023-10-10 Simone Devoto

We present new results of next-to-leading order (NLO) electroweak corrections to doubly-polarized cross sections of $W^+W^-$ production at the LHC. The calculation is performed for the leptonic final state of $e^+\mu_e \mu^- \bar{\nu}_\mu$…

高能物理 - 唯象学 · 物理学 2024-09-26 Thi Nhung Dao , Duc Ninh Le

W bosons produced at high transverse momentum in hadron collisions can have polarization along the direction perpendicular to the production plane, which is odd under na$\ddot{\i}$ve-T-reversal where both the three-momenta and angular…

高能物理 - 唯象学 · 物理学 2014-11-13 Rikkert Frederix , Kaoru Hagiwara , Toshifumi Yamada , Hiroshi Yokoya

The discovery of a Standard Model Higgs boson is possible when experimental cuts are applied which increase the ratio of signal and background cross-sections. In this paper we study the pp->H->WW signal cross-section at the LHC which…

高能物理 - 唯象学 · 物理学 2008-11-26 Charalampos Anastasiou , Guenther Dissertori , Fabian Stoeckli , Bryan R. Webber

We describe the computation of the $gg \to W^+W^-g$ process that contributes to the production of two $W$-bosons and a jet at the CERN Large Hadron Collider (LHC). While formally of next-to-next-to-leading order (NNLO) in QCD, this process…

高能物理 - 唯象学 · 物理学 2015-06-05 Tom Melia , Kirill Melnikov , Raoul Rontsch , Markus Schulze , Giulia Zanderighi

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…

高能物理 - 唯象学 · 物理学 2016-04-06 Mauro Chiesa , Nicolas Greiner , Francesco Tramontano

The angular distributions of Drell-Yan charged lepton pairs around the $Z$-boson mass peak probe the underlying QCD dynamics of $Z$-boson production. This paper presents a measurement of the complete set of angular coefficients $A_{0-7}$…

高能物理 - 实验 · 物理学 2016-09-07 ATLAS Collaboration

Diboson production is of prime interest at the LHC particularly due to its sensitivity to the gauge-boson self interaction, allowing to test its Standard Model prediction with high precision and to search for possible deviations with…

高能物理 - 唯象学 · 物理学 2018-07-27 Mauro Chiesa , Ansgar Denner , Jean-Nicolas Lang