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相关论文: Semi-analytic predictions for W pair production at…

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I present a short overview over W pair production and studies of angular differential cross-sections with and without initial state radiation applying semi-analytical methods and using the Fortran program GENTLE. The influence of anomalous…

高能物理 - 唯象学 · 物理学 2007-05-23 Jochen Biebel

The differential cross-sections for processes of the type e+ e- to W+ W- to l nu q anti-q are determined with account of background contributions and of anomalous triple gauge boson couplings. Analytic expressions for dsigma/ds1 ds2…

高能物理 - 唯象学 · 物理学 2011-09-13 Jochen Biebel , Tord Riemann

I give a short report on the semi-analytical approach to off-shell W pair production. In particular, I show the effects of irreducible background diagrams of the CC11 class in the differential cross-section. Further, I study the influence…

高能物理 - 唯象学 · 物理学 2007-05-23 Jochen Biebel

We present a study of single-W production ($e^+e^-\to e^-\bar{\nu}_e W^+$) as a new probe of the anomalous couplings at the LEP energy region. We introduce simple cuts to separate the single-W process from W-pair production and have…

高能物理 - 唯象学 · 物理学 2009-10-28 Toshio Tsukamoto , Yoshimasa Kurihara

Triple gauge boson associated production at the LHC serves as an interesting channel to test the robustness of the Standard Model. Any deviation from its SM prediction may indicate possible existence of relevant new physics, e.g., anomalous…

高能物理 - 唯象学 · 物理学 2015-06-12 Daneng Yang , Yajun Mao , Qiang Li , Shuai Liu , Zijun Xu , Ke Ye

This Letter reports a measurement of the WW production cross section in sqrt(s) = 7 TeV pp collisions using data corresponding to an integrated luminosity of 1.02/fb collected with the ATLAS detector. Using leptonic decays of oppositely…

高能物理 - 实验 · 物理学 2012-08-27 ATLAS Collaboration

W-pair production in e+ e- annihilation at 500 GeV is studied using different Monte Carlo generators and the proposed detector for the Linear Collider in its TESLA version. Semileptonic W decays are used to give hints for the detector…

We performed a detailed analysis of the process $e^+e^-\to \ell \nu q\bar{q}'$ where we included all tree level Feynman diagrams that contribute to this final state. We studied the sensitivity of this process to anomalous trilinear gauge…

高能物理 - 唯象学 · 物理学 2010-01-15 Mikulas Gintner , Stephen Godfrey , Gilles Couture

This paper presents the extended results of measurements of $W^{\pm}W^{\pm}jj$ production and limits on anomalous quartic gauge couplings using 20.3 ${\rm fb}^{-1}$ of proton-proton collision data at $\sqrt{s}=8$ TeV recorded by the ATLAS…

高能物理 - 实验 · 物理学 2019-08-15 ATLAS Collaboration

Measurements are presented of W gamma gamma and Z gamma gamma production in proton-proton collisions. Fiducial cross sections are reported based on a data sample corresponding to an integrated luminosity of 19.4 inverse femtobarns collected…

高能物理 - 实验 · 物理学 2017-10-17 CMS Collaboration

We determine the accuracy of various approximations to the O(alpha) corrections for on-shell W-pair production. While an approximation based on the universal corrections arising from initial-state radiation, from the running of alpha, and…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Denner , S. Dittmaier

We investigate the effect of anomalous gamma-W-W couplings in e-gamma --> nu W through the angular and energy spectrum of the secondary leptons. Within the narrow-width approximation, a semi-analytical study of the secondary lepton…

高能物理 - 唯象学 · 物理学 2015-05-27 Satendra Kumar , P. Poulose

We present a study of single-W production ($\eetoenuW$) as a new probe of the anomalous couplings at the LEP energy region. The cross-section measurement of the single-W process is found to give complementary bounds on the anomalous…

高能物理 - 唯象学 · 物理学 2011-04-15 Toshio Tsukamoto

We study the sensitivity of the ATLAS experiment to Wtb anomalous couplings in top pair production with semileptonic decay, pp -> t tbar -> W+ b W- bbar, with one of the W bosons decaying leptonically and the other hadronically. Several…

高能物理 - 唯象学 · 物理学 2008-11-26 J. A. Aguilar-Saavedra , J. Carvalho , N. Castro , A. Onofre , F. Veloso

Theoretical calculations for the W-pair production process at LEP2 in terms of Monte Carlo event generators RacoonWW and KorlaW&YFSWW3 are reviewed. The discussion concentrates on precision predictions for the main LEP2 WW observables. The…

高能物理 - 唯象学 · 物理学 2009-11-07 Wieslaw Placzek

In this paper we present for the first time a detailed Monte Carlo study of measuring WZGamma production with pure leptonic decays and probing anomalous quartic gauge-boson WWZGamma couplings at the sqrt(s) = 14 TeV LHC, with parton shower…

高能物理 - 唯象学 · 物理学 2013-07-15 Ke Ye , Daneng Yang , Qiang Li

We review the status of electroweak radiative corrections to top-pair production at a Linear Collider well above the production threshold. We describe the Fortran package topfit and present numerical results at sqrt(s) = 500 GeV, 1 TeV, and…

高能物理 - 唯象学 · 物理学 2007-05-23 J. Fleischer , A. Leike , T. Riemann , A. Werthenbach

We report the results on the search for exclusive production of $W$ pairs in the LHC with data collected by the Compact Muon Solenoid detector in proton-proton collisions at $\sqrt{s}$ = 7 TeV. The analysis comprises the two-photon…

高能物理 - 实验 · 物理学 2019-08-13 Gustavo G. da Silveira

We study the impact of anomalous gauge boson and fermion couplings on the production of $W^+W^-$ pairs at the LHC. Helicity amplitudes are presented separately to demonstrate the sources of new physics contributions and the impact of QCD…

高能物理 - 唯象学 · 物理学 2017-10-18 Julien Baglio , Sally Dawson , Ian M. Lewis

A search for exclusive or quasi-exclusive W(+)W(-) production by photon-photon interactions, pp to p(*)W(+)W(-)p(*), at sqrt(s) = 7 TeV is reported using data collected by the CMS detector with an integrated luminosity of 5.05 inverse…

高能物理 - 实验 · 物理学 2013-08-22 CMS Collaboration
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