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Related papers: Probing Three-Boson Anomalous Couplings in $e^+e^-…

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We investigate the sensitivity of total cross sections of $e+p \rightarrow W,Z$ to CP-conserving non-standard $WW\gamma$ couplings. We include all the important production mechanisms and study the dependence of the total $W$ cross sections…

High Energy Physics - Phenomenology · Physics 2011-07-19 C. S. Kim , Jungil Lee , H. S. Song

The main possibilities of investigation of leptons and bosons production in interaction of polarized photons are considered. The usage of $\gamma\gamma\to f\bar{f}[+\gamma]$ reactions for the luminosity measurement on linear photon collider…

High Energy Physics - Phenomenology · Physics 2007-08-21 T. V. Shishkina

We discuss the direct measurement of the trilinear vector boson couplings in present and future collider experiments. The major goals of such experiments will be the confirmation of the Standard Model (SM) predictions and the search for…

High Energy Physics - Phenomenology · Physics 2016-11-03 H. Aihara , T. Barklow , U. Baur , J. Busenitz , S. Errede , T. A. Fuess , T. Han , D. London , J. Ohnemus , R. Szalapski , C. Wendt , D. Zeppenfeld

Limits on the anomalous WWgamma and WWZ couplings are presented from a simultaneous fit to the data samples of three gauge boson pair final states in pbar-p collisions at sqrt(s)=1.8 TeV: Wgamma production with the W boson decaying to enu…

High Energy Physics - Experiment · Physics 2008-11-26 D0 Collaboration , B. Abbott , M. Abolins

We consider the production and decay of selectrons and charginos in $e^-e^-$ collisions. The advantage over usual $e^+e^-$ collisions is the very low level of standard model backgrounds which should make the discovery of selectrons or…

High Energy Physics - Phenomenology · Physics 2009-10-22 Frank Cuypers , Geert Jan van Oldenborgh , Reinhold Rückl

The recent results of the CLEO Collaboration on both inclusive and exclusive radiative $B$ decays are combined with those of the UA2 Collaboration on $W\gamma$ production to highly constrain the anomalous trilinear gauge couplings of the…

High Energy Physics - Phenomenology · Physics 2009-09-09 T. G. Rizzo

Model independent constraints on the mass of extra neutral gauge bosons and their couplings to charged leptons are given for LEP~II and a 500\,GeV $e^+e^-$ collider. Analytical exclusion limits are derived in the Born approximation. The…

High Energy Physics - Phenomenology · Physics 2009-10-22 Arnd Leike

We consider the possibility of studying anomalous contributions to the gamma-gamma-H and Z-gamma-H vertices through the process e-gamma--> e-H at future e-gamma linear colliders, with Sqrt(S)=500-1500 GeV. We make a model independent…

High Energy Physics - Phenomenology · Physics 2011-07-19 E. Gabrielli , V. A. Ilyin , B. Mele

A search is presented for three additional operators that would lead to anomalous WW$\gamma$ or WWZ couplings with respect to those in the standard model. They are constrained by studying events with two vector bosons; a W boson decaying to…

High Energy Physics - Experiment · Physics 2019-12-17 CMS Collaboration

We study the vector-boson production processes e+e- --> WWZ and e+e- -->WWgamma which are directly affected by the trilinear and quadrilinear self couplings of the W, Z and gamma. Our analysis is based upon a single-parameter…

High Energy Physics - Phenomenology · Physics 2009-10-22 C. Grosse-Knetter , D. Schildknecht

We explore the effects of neutrino and electron mixing with exotic heavy leptons in the process e^+e^-\to W^+W^- within E_6 models. We examine the possibility of uniquely distinguishing and identifying such effects of heavy neutral lepton…

High Energy Physics - Phenomenology · Physics 2013-06-05 G. Moortgat-Pick , P. Osland , A. A. Pankov , A. V. Tsytrinov

We conducted a study on measuring $W^+W^-$ production and on the sensitivity limits at $95\%$ Confidence Level on thirteen anomalous couplings obtained by dimension-8 operators which are related to the anomalous quartic $WW\gamma\gamma$…

High Energy Physics - Phenomenology · Physics 2020-06-01 V. Ari , E. Gurkanli , A. Gutiérrez-Rodríguez , M. A. Hernández-Ruíz , M. Köksal

The triple gauge couplings are completely defined by the non-Abelian gauge nature of the Standard Model, precision measurements of these couplings at the present and future colliders in this way provide a substantial opportunity to test the…

High Energy Physics - Phenomenology · Physics 2020-09-01 S. Spor , A. A. Billur , M. Köksal

It has recently been shown that by measuring the transverse polarizations of the final particles in $\mu^- \to e^- e^+ e^-$, it is possible to extract information on the phases of the effective couplings leading to this decay. We examine…

High Energy Physics - Phenomenology · Physics 2010-08-12 Yasaman Farzan , Saereh Najjari

We examine how accurately the general HZV couplings, with V=Z,gamma, may be determined by studying e^+e^- --> Hff-bar processes at future e^+e^- linear colliders. By using the optimal-observable method, which makes use of all available…

High Energy Physics - Phenomenology · Physics 2016-09-06 K. Hagiwara , S. Ishihara , J. Kamoshita , B. A. Kniehl

We study the production processes e^+ e^- -> chi^+_i chi^-_j, i,j=1,2, and e^+ e^- -> chi^0_m chi^0_n, m,n=1,...,4, working out the advantages of polarizing both beams. For e^+ e^- -> chi^+_1 chi^-_1 with chi^-_1 -> chi^0_1 e^- nu and e^+…

High Energy Physics - Phenomenology · Physics 2009-01-07 G. Moortgat-Pick , A. Bartl , H. Fraas , W. Majerotto

We consider the virtual effects of a general type of Anomalous (triple) Gauge Couplings on various experimental observables in the process of electron-positron annihilation into a final fermion-antifermion state. We show that the use of a…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Blondel , F. M. Renard , L. Trentadue , C. Verzegnassi

We study the anomalous triple gauge boson couplings (aTGC) in $ZW^\pm$ production in $3l$ + missing $E_T$ channel at the LHC for $\sqrt{s}=13$ TeV. We use cross sections, azimuthal asymmetry, forward-backward asymmetry, and polarization…

High Energy Physics - Phenomenology · Physics 2020-07-16 Rafiqul Rahaman , Ritesh K. Singh

The effect of anomalous chromoelectric couplings of the gluon to the top quark are considered in e+ e- --> t tbar. The total cross section, as well as t and tbar polarizations are calculated to order alpha_s in the presence of the anomalous…

High Energy Physics - Phenomenology · Physics 2011-09-29 Saurabh D. Rindani , Michael M. Tung

The production of two and three electroweak gauge bosons in the high-energy $\gamma\gamma$ collisions gives the well opportunity to probe anomalous quartic gauge boson couplings. The influence of five possible anomalous couplings on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 I. B. Marfin , V. A. Mossolov , T. V. Shishkina