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Related papers: Anomalous Higgs Couplings at an $e \gamma$ Collide…

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Probing signatures of anomalous interactions of the Higgs boson with pairs of weak vector bosons is an important goal of an $e^+e^-$ collider commissioned as a Higgs factory. We perform a detailed analysis of such potential of a collider…

High Energy Physics - Phenomenology · Physics 2015-03-17 Gilad Amar , Shankha Banerjee , Stefan von Buddenbrock , Alan S. Cornell , Tanumoy Mandal , Bruce Mellado , Biswarup Mukhopadhyaya

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

We analyze the influence of anomalous gauge couplings in the reaction $e^- \: e^- \longrightarrow e^- \: W^- \: \nu_e$ at a 500 GeV linear collider. The limits imposed by this process on deviations from the standard model of electro-weak…

High Energy Physics - Phenomenology · Physics 2009-10-22 Debajyoti Choudhury , Frank Cuypers

We examine, in a model independent way, the sensitivity of a Linear Collider to the couplings of a light Higgs boson to gauge bosons. Including the possibility of CP violation, we construct several observables that probe the different…

High Energy Physics - Phenomenology · Physics 2014-11-18 Sudhansu S. Biswal , Debajyoti Choudhury , Rohini M. Godbole , Ritesh K. Singh

We investigate the existence of anomalous Higgs boson couplings, $H\gamma\gamma$ and $HZ\gamma$, through the analysis of the process $e^+ e^- \to \gamma\gamma\gamma$ at LEP2 energies. We suggest some kinematical cuts to improve the signal…

High Energy Physics - Phenomenology · Physics 2009-10-28 F. de Campos , S. M. Lietti , S. F. Novaes , R. Rosenfeld

We consider the possibility of observing deviations from the Standard Model gauge-boson self-couplings at future $e\gamma$ colliders. We concentrate on the process $e^-\gamma \rightarrow \nu W^- Z$, which is particularly sensitive to the…

High Energy Physics - Phenomenology · Physics 2009-12-30 K. Cheung , S. Dawson , T. Han , G. Valencia

We study possible new physics interactions in the $ZZH$ vertex contributing to the Higgsstrahlung process $e^+ e^- \to ZH$ at proposed future $e^+e^-$ colliders using the polarization of the $Z$ as a probe. We calculate the spin density…

High Energy Physics - Phenomenology · Physics 2020-01-08 Kumar Rao , Saurabh D. Rindani , Priyanka Sarmah

We study the constraints on the vertices $W^+W^- Z\gamma$, $W^+W^-\gamma\gamma$, and $ZZ\gamma\gamma$ that can be obtained from triple-gauge-boson production at the next generation of linear $e^+e^-$ colliders operating in the…

High Energy Physics - Phenomenology · Physics 2009-10-28 O. J. P. Eboli , M. B. Magro , P. G. Mercadante , S. F. Novaes

We investigate the constraints on the anomalous WWH couplings through the process $e^{-}\gamma \to \nu_{e} W^{-} H$. Considering incoming beam polarizations and the longitudinal and transverse polarization states of the final W boson, we…

High Energy Physics - Phenomenology · Physics 2008-11-26 I. Sahin

We propose to measure the $HZ\gamma$ and $H\gamma\gamma$ anomalous couplings in the process of $e^{+}e^{-}\rightarrow H\gamma$ with the sequential decay of $H\to b{\bar b}$. The discovery potential of observing the anomalous couplings are…

High Energy Physics - Phenomenology · Physics 2015-12-09 Qing-Hong Cao , Hao-Ran Wang , Ya Zhang

We study the process $e^+e^- \rightarrow W^+W^- \gamma$ at high-energy $e^+ e^-$ colliders to investigate the effect of genuine quartic $W^+W^-\gamma\gamma$ and $W^+W^- Z\gamma$ anomalous couplings on the cross section. Deviations from the…

High Energy Physics - Phenomenology · Physics 2009-10-28 Ghadir Abu Leil , W. J. Stirling

We study the sensitivity of testing the anomalous gauge couplings $g_{HVV}$'s of the Higgs boson in the formulation of linearly realized gauge symmetry via the processes $\gamma\gamma\to ZZ$ and $\gamma\gamma\to WWWW$ at polarized and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Tao Han , Yu-Ping Kuang , Bin Zhang

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 examine the sensitivity to the couplings of the Higgs boson to neutral gauge bosons in a model independent way at the Large Hadron electron Collider (LHeC). We have obtained the constraints on anomalous couplings for $HZZ$ vertex via the…

High Energy Physics - Phenomenology · Physics 2013-09-18 I. T. Cakir , O. Cakir , A. Senol , A. T. Tasci

The production of three electroweak gauge bosons in high-energy $e^+e^-$ collisions offers a window on anomalous quartic gauge boson couplings. We investigate the effect of three possible anomalous couplings on the cross sections for…

High Energy Physics - Phenomenology · Physics 2011-09-13 W. James Stirling , Anja Werthenbach

The bounds on the anomalous contributions to the ggh and zgh vertices that can be obtained via the process eg->eh are discussed through a model independent analysis based on SU(2) X U(1) invariant operators of dim=6. A light Higgs boson…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Gabrielli , V. A. Ilyin , B. Mele

We investigate the constraints on the anomalous quartic $W^{+}W^{-}Z\gamma$ gauge boson coupling through the process $e^{-}\gamma\to \nu_{e}W^{-}Z$. Considering incoming beam polarizations and the longitudinal and transverse polarization…

High Energy Physics - Phenomenology · Physics 2009-10-06 I. Sahin

We study the bounds on the anomalous contributions to the gamma-gamma-H and Z-gamma-H vertices that can be obtained via the process e-gamma-->e H. We consider the representative case of an intermediate Higgs mass production of MH=120 GeV…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Gabrielli , V. A. Ilyin , B. Mele

We present sensitivity limits on the coefficients of a dimension-6 effective Lagrangian that parametrizes the possible effects of new physics beyond the Standard Model. Our results are based on the study of the process $e^+ e^- \to W^+ W^-…

High Energy Physics - Phenomenology · Physics 2016-09-06 F. de Campos , S. M. Lietti , S. F. Novaes , R. Rosenfeld

We present the sensitivity limits on the coefficients of a dimension-6 effective operators that parametrizes the possible effects of new physics beyond the Standard Model. Our results are based on the study of the processes $e^+ e^- \to W^+…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. de Campos , S. M. Lietti , S. F. Novaes , R. Rosenfeld
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