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Related papers: Using Back-Scattered Laser Beams to Detect CP Viol…

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The CP properties of Higgs bosons can be probed through their s-channel resonance productions via photon-photon collisions by use of circularly and/or linearly polarized backscattered laser photons at a TeV-scale linear e^+ e^- collider.…

High Energy Physics - Phenomenology · Physics 2014-11-17 S. Y. Choi , Jae Sik Lee

The possibility of observing CP-violation in the process $\gamma \gamma \to H$ is investigated for masses of the Higgs particle in the interval $M_z \lsim m_H \lsim 2 m_t$, using a 0.5TeV tunable linear $e^{+} e^{-}$ collider through laser…

High Energy Physics - Phenomenology · Physics 2014-11-17 G. J. Gounaris , G. P. Tsirigoti

We determine the optimal laser and $\ep/\em$ energies and polarizations for {\it directly} determining the CP eigenvalue of each of the neutral Higgs bosons of the Minimal Supersymmetric Model via measurement of transverse polarization…

High Energy Physics - Phenomenology · Physics 2010-11-01 J. F. Gunion , J. G. Kelly

We study the phenomenological implications of the Higgs sector CP violation at a photon collider. In our model, the CP violation is radiatively induced by the non-trivial CP phases of the third-generation scalar-quark sector in the MSSM. We…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jae Sik Lee

We discuss the use of fermion polarization for studying neutral Higgs bosons at a photon collider. To this aim we construct polarization asymmetries which can isolate the contribution of a Higgs boson $\phi$ in $\gamma\gamma\to f \bar f$,…

High Energy Physics - Phenomenology · Physics 2014-11-18 Rohini M. Godbole , Sabine Kraml , Saurabh D. Rindani , Ritesh K. Singh

In this review we demonstrate physics potential of a photon linear collider by studying the neutral Higgs-boson sector of the MSSM in which interesting CP-violating Higgs mixing could arise via radiative corrections.

High Energy Physics - Phenomenology · Physics 2008-11-26 Jae Sik Lee

We present a model-independent study of the effects of a neutral Higgs boson without definite CP-parity in the process $\gamma\gamma \to t\bar{t}$ around the mass pole of the Higgs boson. Near the resonance pole, the interference between…

High Energy Physics - Phenomenology · Physics 2009-10-31 Eri Asakawa , S. Y. Choi , Kaoru Hagiwara , Jae Sik Lee

First realistic estimate of the usefulness of the Photon Linear Collider with linearly polarized photons as analyzer of the CP-parity of Higgs bosons is presented. MSSM Higgs bosons H and A with 300 GeV mass, for the model parameters…

High Energy Physics - Phenomenology · Physics 2009-02-16 A. F. Zarnecki , P. Niezurawski , M. Krawczyk

The CP structure of the Higgs sector will be of great interest to future colliders. The measurement of the CP properties of candidate Higgs particles will be essential in order to distinguish models of electroweak symmetry breaking, and to…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. M. Godbole , S. Kraml , M. Krawczyk , D. J. Miller , P. Niezurawski , A. F. Zarnecki

We study possible effects of CP violation in the Higgs sector on $t\bar t$ production at a $\gamma\gamma$-collider. These studies are performed in a model-independent way in terms of six form-factors $\{\Re(S_{\gamma}), \Im(S_{\gamma}),…

High Energy Physics - Phenomenology · Physics 2014-11-17 Rohini M. Godbole , Saurabh D. Rindani , Ritesh K. Singh

A $\gamma\gamma$ collider, either in conjunction with an $e^+e^-$ linear collider or as a stand-alone facility, offers a very attractive Higgs physics programme at relatively low centre-of-mass (c.m.) energies. While the Higgs boson that…

High Energy Physics - Phenomenology · Physics 2025-10-07 Marten Berger , Johannes Braathen , Gudrid Moortgat-Pick , Georg Weiglein

We present results of an investigation to study CP violation in the Higgs sector in $t\bar t$ production at a $\gamma\gamma$-collider, via the process $ \gamgam \ra \phi \ra t \bar t$ where the $\phi$ is a scalar with indeterminate CP…

High Energy Physics - Phenomenology · Physics 2007-05-23 Rohini M. Godbole

I summarize the abilities of LEP-II, the SSC/LHC hadron colliders, and a future high energy $\epem$ collider (NLC) to detect the Higgs bosons of the Minimal Supersymmetric Model (MSSM). I then review the unique capabilities of a…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. F. Gunion

We present the general formalism for studying CP-violating phenomena in the production,mixing and decay of a coupled system of CP-violating neutral Higgs bosons at high-energy colliders. Considering the Minimal Supersymmetric Standard Model…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jae Sik Lee

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

We present a comprehensive analysis on the MSSM Higgs sector CP violation at photon colliders including the chargino contributions as well as the contributions of other charged particles. The chargino loop contributions can be important for…

High Energy Physics - Phenomenology · Physics 2008-11-26 Saebyok Bae , Byungchul Chung , P. Ko

A muon collider with controllable energy resolution and transverse beam polarization provides a powerful probe of the Higgs sector in the minimal supersymmetric standard model with explicit CP violation, through s-channel production of…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. Y. Choi , Jae Sik Lee

We investigate the prospects of determining the CP nature of the 126 GeV neutral spin-0 (Higgs) boson h, discovered at the LHC, at a future linear collider. We consider the production of h by the Higgsstrahlung process and its subsequent…

High Energy Physics - Phenomenology · Physics 2013-12-11 Stefan Berge , Werner Bernreuther , Hubert Spiesberger

We study the use of polarization asymmetries at a muon collider to determine the CP-even and CP-odd couplings of a Higgs boson to $\mu^+mu^-$. We determine achievable accuracy as a function of beam polarization and luminosity. The…

High Energy Physics - Phenomenology · Physics 2009-09-15 B. Grzadkowski , J. F. Gunion , J. Pliszka

We investigate for two-Higgs doublet models with intrinsic CP violation in the scalar potential CP-nonconserving effects in unpolarized $\gamma \gamma \rightarrow t \bar{t} $ for a range of neutral Higgs boson masses which includes resonant…

High Energy Physics - Phenomenology · Physics 2014-11-17 H. Anlauf , W. Bernreuther , A. Brandenburg
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