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Related papers: TESTING THE $WW\gamma$ COUPLING AT $e^+e^-$ COLLID…

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We present a search for anomalous components of the quartic gauge boson coupling WW{\gamma}{\gamma} in events with an electron, a positron and missing transverse energy. The analyzed data correspond to 9.7 fb^-1 of integrated luminosity…

High Energy Physics - Experiment · Physics 2014-03-12 D0 Collaboration

The constraints on anomalous Higgs boson couplings are investigated through the process $\gamma\gamma \to W^{+}W^{-}H$. Considering the longitudinal and transverse polarization states of the final $W^{+}$ and $W^{-}$ bosons and incoming…

High Energy Physics - Phenomenology · Physics 2009-01-16 B. Sahin

We investigate $e^{+}e^{-}\to \gamma\gamma$ process within the Seiberg-Witten expanded noncommutative standard model(NCSM) scenario in the presence of anomalous triple gauge boson couplings. This study is done with and without initial beam…

High Energy Physics - Phenomenology · Physics 2012-02-14 N. G. Deshpande , Sumit K. Garg

The advent of back-scattered laser beams for electron-positron colliders will allow detailed studies of a large array of high energy photon-photon and photon-electron collision processes with polarized beams. These include tests of…

High Energy Physics - Phenomenology · Physics 2009-09-11 Stanley J. Brodsky

W+W-gamma production at LEP2 is studied using data collected with the DELPHI detector at centre-of-mass energies between 189 GeV and 209 GeV, corresponding to an integrated luminosity of about 600 pb^-1. Cross-sections are measured for the…

High Energy Physics - Experiment · Physics 2008-11-26 The DELPHI Collaboration , J. Abdallah

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…

High Energy Physics - Experiment · Physics 2013-08-22 CMS Collaboration

The weak dipole moments of leptons and quarks, \ie those related to their $Z$--coupling, are reviewed. Standard Model predictions and experimental results may result in a stringent test for both their pointlike structure and also for the…

High Energy Physics - Phenomenology · Physics 2016-08-15 J. Bernabéu , G. A. González-Sprinberg , J. Vidal

The study of charge asymmetry of W bosons in the process \egam\to eWW can be a tool for discovery of strong interaction in Higgs sector at energies that are lower than it is necessary for observation of resonances caused by this strong…

High Energy Physics - Phenomenology · Physics 2007-05-23 I. F. Ginzburg , K. A. Kanishev

In this report I surveyed physics potential of the gamma-gamma option of a Linear e+e- Collider with the following questions in mind: What new discovery can be expected at a gamma-gamma collider in addition to what will be learned at its…

High Energy Physics - Phenomenology · Physics 2008-11-26 Kaoru Hagiwara

Future high-energy $\textrm{e}^+\textrm{e}^-$ colliders will provide some of the most precise tests of the Standard Model. Statistical uncertainties on electroweak precision observables and triple gauge couplings are expected to improve by…

High Energy Physics - Phenomenology · Physics 2023-01-18 Jakob Beyer , Jenny List

The process e+e- -> W+W-gamma is analysed using the data collected with the L3 detector at LEP at a centre-of-mass energy of 188.6GeV, corresponding to an integrated luminosity of 176.8pb^-1. Based on a sample of 42 selected W+W- candidates…

High Energy Physics - Experiment · Physics 2012-08-27 L3 Collaboration

We measure the cross section and the difference in rapidities between photons and charged leptons for inclusive W -> lnu+gamma production in egamma and mugamma final states. Using data corresponding to an integrated luminosity of 4.2 fb-1…

High Energy Physics - Experiment · Physics 2015-05-30 The D0 Collaboration

This Letter describes the current most precise measurement of the $W$ boson pair production cross section and most sensitive test of anomalous $WW\gamma$ and $WWZ$ couplings in $p \bar p$ collisions at a center-of-mass energy of 1.96 TeV.…

High Energy Physics - Experiment · Physics 2010-05-25 The CDF Collaboration , T. Aaltonen

Evidence of anomalous WW and WZ production was sought in pbar{p} collisions at a center-of-mass energy of sqrt(s) = 1.8 TeV. The final states $WW (WZ) to mu-nu-jet-jet + X, WZ to mu-nu-e-e + X and WZ to e-nu-e-e + X were studied using a…

High Energy Physics - Experiment · Physics 2012-08-27 D0 Collaboration

Photonic events with large missing energy have been observed in e+e- collisions at a centre-of-mass energy of 189GeV using the OPAL detector at LEP. Results are presented for event topologies consistent with a single photon or with an…

High Energy Physics - Experiment · Physics 2008-12-18 G. Abbiendi , the OPAL collaboration

In a strongly-interacting electroweak sector with an isosinglet vector state, such as the techni-omega, $\omega_T$, the direct $\omega_T Z \gamma $ coupling implies that an $\omega_T$ can be produced by $Z \gamma$ fusion in $e\gamma$…

High Energy Physics - Phenomenology · Physics 2009-10-31 Stephen Godfrey , Tao Han , Pat Kalyniak

In this paper we do an analysis of the reaction $e^+e^-\to W^+W^-$ for various options of the Next Linear Colliders (NLC), by considering the possibility of deviations from the Standard Model induced by anomalous trilinear vector boson…

High Energy Physics - Phenomenology · Physics 2016-08-24 R. Casalbuoni , S. De Curtis , D. Guetta

We discuss possible New Physics (NP) effects on the processes $\gamma\gamma \to W^+W^-$, $ZZ$, $Z\gamma$, $\gamma\gamma$, $HH$ which are observable in $\gamma\gamma$ collisions. Such collisions may be achieved through laser backscattering…

High Energy Physics - Phenomenology · Physics 2014-11-17 G. J. Gounaris , J. Layssac , F. M. Renard

The production of top quark pairs in association with a hard gluon in $e^+e^-$ collisions at the NLC provides an opportunity to probe for anomalous $t\bar tg$ couplings, \eg, the chromoelectric and chromomagnetic moments of the top. We…

High Energy Physics - Phenomenology · Physics 2007-05-23 Thomas G. Rizzo

Anomalous quartic couplings between the electroweak gauge bosons may contribute to the vv gamma gamma and qq gamma gamma final states produced in e+e- collisions. This analysis uses the LEP2 OPAL data sample at centre-of-mass energies up to…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL collaboration , G. Abbiendi