CP Violation in γγ → W + W − with Polarized Photon

CP Violation in γγ → W + W − with Polarized Photon Beams

Probing the CP of the Higgs at a γγ collider using γγ → tt̄ → lX

Probing the CP of the Higgs at a γγ collider using γγ → t ¯ t → lX. ABSTRACT We present results of an investigation to study CP violation in the Higgs sector in t ¯ t production at a γγ-collider. This is done in a model independent way in terms of six form-factors {ℜ(S γ), ℑ(S γ), ℜ(P γ), ℑ(P γ), S t , P t } which parameterize the CP mixing in Higgs sector. The angular distribution of the decay...

CP property of the Higgs at the γγ colliders using tt̄ production

CP property of the Higgs at the γγ colliders using t ¯ t production. ABSTRACT We present results of an investigation to study CP violation in the Higgs sector in t ¯ t production at a γγ-collider, via the process γγ → φ → t ¯ t where the φ is a scalar with indeterminate CP parity. The study is performed in a model independent way parametrising the CP violating couplings in terms of six form fac...

Probing Higgs-sector Cp Violation at a Photon Collider

The two-photon collision option of the International Linear ee Collider (ILC), a photon linear collider (PLC), is using back-scattered laser photons off the incident electrons and/or positrons. 1,2 A photon collider provides unique capabilities for probing new physics appearing in neutral spin-zero particles such as neutral Higgs bosons in the Standard Model (SM) and its Minimal Supersymmetric ...

CP Nonconservation in Top Quark Production by ( Un ) Polarized e + e − and γγ Collisions 1

We report on an investigation of CP violation in (un)polarized ee → t̄t resulting from an extended neutral Higgs sector or from the minimal SUSY extension of the Standard Model (SM). We consider c.m. energies from the t̄t threshold to the TeV range. In addition sensitivity estimates for CP-violating form factors of the top quark are made. Further we discuss the prospects of probing Higgs sector C...