2001/10/26 by G. C. Branco, F. Krüger, Branco, G. C. +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0110350
5 pages, 2 figures, uses JHEP LaTeX. Talk presented by A. Teixeira at the International Europhysics Conference on High Energy Physics (HEP2001), Budapest, Hungary, 12-18 July 2001. To appear in the proceedings
arxiv created 2001/10/29 · arxiv updated 2009/11/30
We re-examine spontaneous \cp violation (SCPV) at the tree level in the context of the next-to-minimal supersymmetric standard model (NMSSM) with two Higgs doublets and a gauge singlet field. We analyse the most general Higgs potential without a discrete Z3 symmetry, and derive an upper bound on the mass of the lightest neutral Higgs boson. We estimate \epsiK by applying the mass insertion approximation, finding that in order to account for the for the observed \cp violation in the neutral kaon sector a non-trivial flavour structure in the soft-breaking A terms is required and that the upper bound on the lightest Higgs-boson mass becomes stronger. We also discuss the implications of electric dipole moments of the electron and the neutron in SUSY models with SCPV.