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A measurement of the inclusive cross section of top quark pair production in association with a Z boson using proton-proton collisions at a center-of-mass energy of 13 TeV at the LHC is performed. The data sample corresponds to an…

High Energy Physics - Experiment · Physics 2020-03-23 CMS Collaboration

We consider hadronic production of a Z boson in association with a jet and study one- and two-loop electroweak logarithmic corrections in the region of high Z-boson transverse momentum, p_T >> M_Z, including leading and next-to-leading…

High Energy Physics - Phenomenology · Physics 2010-04-05 Johann H. Kuhn , A. Kulesza , S. Pozzorini , M. Schulze

The status of published and preliminary precision electroweak measurements as of winter 2002/03 is presented. The new results on the mass of the W boson as measured at LEP-2 and on atomic parity violation in Caesium are included. The…

High Energy Physics - Experiment · Physics 2007-05-23 Martin W. Grunewald

The production of $W^{\pm}Z$ events in proton--proton collisions at a centre-of-mass energy of 13 TeV is measured with the ATLAS detector at the LHC. The collected data correspond to an integrated luminosity of 3.2 fb$^{-1}$. The $W^{\pm}Z$…

High Energy Physics - Experiment · Physics 2016-09-26 ATLAS Collaboration

A review of recent electroweak results from hadron colliders is given. Properties of the W and Z gauge bosons using final states containing electrons and muons based on large integrated luminosities are presented. The emphasis is placed on…

High Energy Physics - Experiment · Physics 2009-10-30 Marcel Demarteau

The status of several precisely measured electroweak parameters is reviewed. Natural relations among them are shown to constrain the Higgs mass, m_H, as well as various ``New Physics'' effects. Indications of an anomalous Zb anti-b coupling…

High Energy Physics - Phenomenology · Physics 2008-11-26 William J. Marciano

The first evidence for the standard model production of a top quark in association with a W boson and a Z boson is reported. The measurement is performed in multilepton final states, where the Z boson is reconstructed via its decays to…

High Energy Physics - Experiment · Physics 2024-07-10 CMS Collaboration

The purely electroweak (EW) cross section for the production of two jets in association with a Z boson, in proton-proton collisions at sqrt(s) = 8 TeV, is measured using data recorded by the CMS experiment at the CERN LHC, corresponding to…

High Energy Physics - Experiment · Physics 2015-02-13 CMS Collaboration

The pair production of a $W$ and a $Z$ boson at the LHC is an important process to study the triple-gauge boson couplings as well as to probe new physics that could arise in the gauge sector. In particular the leptonic channel $p p \to…

High Energy Physics - Phenomenology · Physics 2019-05-13 Julien Baglio , Le Duc Ninh

This note presents constraints on Standard Model parameters using published and preliminary precision electroweak results measured at the electron-positron colliders LEP and SLC. The results are compared with precise electroweak…

The mass of the W boson is one of the least precisely measured parameters of the electroweak interaction. Confronted with other measurements of standard model parameters it can test the internal consistency of the Standard Model and can…

High Energy Physics - Experiment · Physics 2008-09-04 I. Bizjak

The performance is presented of the reconstruction and identification algorithms for electrons and photons with the CMS experiment at the LHC. The reported results are based on proton-proton collision data collected at a center-of-mass…

High Energy Physics - Experiment · Physics 2021-05-19 CMS Collaboration

We study di-boson production via both neutral and charged current at the Large Hadron Collider, i.e. subprocesses $q\bar q\to e^+\nu_e \mu^-\bar\nu_\mu$ + ${\rm{c.c.}}$ and $q\bar q'\to l^+\nu_l l^{'+}l^{'-}$ + ${\rm{c.c.}}$, respectively,…

High Energy Physics - Phenomenology · Physics 2014-03-14 Daniele Barducci , Luca Fedeli , Stefano Moretti , Stefania De Curtis , Giovanni Marco Pruna

A general review of the latest results about single and double vector boson production in the multipurpose experiments at LHC (ATLAS and CMS) and at Tevatron (CDF and D0) will be presented. The review will focus on boson production, while a…

High Energy Physics - Experiment · Physics 2019-08-15 Sara Bolognesi

This note presents selected measurements of W and Z boson production, carried out with the CMS experiment at the LHC, based on samples of events collected during 2015-2018 physics runs. W boson events were selected containing an isolated,…

High Energy Physics - Experiment · Physics 2021-01-05 B. Bilin

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…

This note presents constraints on Standard Model parameters using published and preliminary precision electroweak results measured at the electron-positron colliders LEP and SLC. The results are compared with precise electroweak…

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 consider the production of a single $Z$ or $W$ boson in association with jets at the LHC. We compute the corresponding cross sections by matching NLO QCD predictions with the Herwig++ and Pythia8 parton showers, and by merging all of the…

High Energy Physics - Phenomenology · Physics 2016-03-23 Rikkert Frederix , Stefano Frixione , Andreas Papaefstathiou , Stefan Prestel , Paolo Torrielli

It was recently proposed to extend the Standard Model by means of new spin-1 chiral $Z^*$ and $W^{*\pm}$ bosons with the internal quantum numbers of the electroweak Higgs doublets. These bosons have unique signatures in transverse momentum,…

High Energy Physics - Phenomenology · Physics 2011-10-26 M. V. Chizhov , V. A. Bednyakov , I. R. Boyko , J. A. Budagov , M. A. Demichev , I. V. Yeletskikh