Eur. Phys. J. C 25, 307-313 (2002)
DOI: 10.1007/s10052-002-0997-8
Supersymmetric Higgs boson decays in the MSSM with explicit CP violation
S.Y. Choi1, M. Drees2, J.S. Lee3 and J. Song41 Department of Physics, Chonbuk National University, Chonju 561-756, Korea
2 Physik Department, TU München, James Franck Str., 85748 Garching, Germany
3 Theory Group, KEK, Tsukuba, Ibaraki 305-0801, Japan
4 School of Physics, Korea Institute for Advanced Study, Seoul 130-012, Korea
(Received: 18 April 2002 / Published online: 26 July 2002 )
Abstract
Decays into neutralinos and charginos are among the most accessible
supersymmetric decay modes of Higgs particles in most supersymmetric
extensions of the standard model. In the presence of explicitly
CP violating phases in the soft breaking sector of the theory,
the
couplings of Higgs bosons to charginos and neutralinos are in
general
complex. Based on a specific benchmark scenario of
CP violation,
we
analyze the phenomenological impact of explicit
CP violation
in the
minimal supersymmetric standard model on these Higgs boson decays.
The
presence of
CP violating phases could be confirmed either directly
through the measurement of a
CP odd polarization asymmetry
of the
produced charginos and neutralinos, or through the dependence
of
CP even quantities (branching ratios and masses) on these phases.
© Società Italiana di Fisica, Springer-Verlag 2002
