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The Processes gamma gamma to ZH in SM and MSSM ![]() Auteur(s): Gounaris G.J., Renard F. M., Porfyriadis P.I.
(Article) Publié:
European Physical Journal C, vol. p.659-675 (2001)
Texte intégral en Openaccess : Ref Arxiv: hep-ph/0103135 DOI: 10.2001EPJC...20..659G Ref. & Cit.: NASA ADS Résumé: The process $\gamma\gamma\to Z H $ first arises at the one loop level, and as such it provides us with remarkable tests of the structure of the electroweak Higgs sector. These tests are complementary to those in the gauge sector involving $\gamma\gamma\to \gamma\gamma, \gamma Z, ZZ$. We show that in the standard model (SM) where H=HSM, as well as in the supersymmetric case where H=h0, H0 or A0, observables exist (like e.g. the energy dependence, angular distribution, photon polarization dependence or final Z polarization) which present rather spectacular properties. Such properties involve strong threshold effects with steps, bumps or peaks, reflecting the type of Higgs and heavy quarks and chargino masses and couplings predicted by the SM and supersymmetric models. |