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# Probing CP-violating Higgs contributions in \gamma \gamma \longrightarrow $f$ $^-_f$

Godbole, Rohini M and Kraml, Sabine and Rindani, Saurabh D (2007) Probing CP-violating Higgs contributions in \gamma \gamma \longrightarrow $f$ $^-_f$. In: Pramana-Journal of Physics, 69 (5). pp. 771-775.

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## Abstract

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 \theta in \gamma \gamma \longrightarrow $f$ $f$, f = r/t, from that of the QED continuum. This can help in getting information on the \gamma \gamma \theta coupling in case \theta is a CP eigenstate. We also construct CP-violating asymmetries which can probe CP mixing in case Á has indeterminate CP. Furthermore, we take the MSSM with CP violation as an example to demonstrate the potential of these asymmetries in a numerical analysis. We find that these asymmetries are sensitive to the presence of a Higgs boson as well as its CP properties over a wide range of MSSM parameters.

Item Type: Journal Article Copyright of this article belongs to Indian Academy of Sciences. CP-violating Higgs;polarization;photon collider. Division of Physical & Mathematical Sciences > Centre for High Energy Physics 05 Jun 2008 19 Sep 2010 04:45 http://eprints.iisc.ernet.in/id/eprint/14200

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