Author: Ken Kiers, Amarjit Soni, and Guo-Hong Wu
Title: CP Violation in B Decays in a 2-Higgs Doublet Model for the Top Quark
Abstract: In the absence of natural flavor conservation, multi-Higgs doublet modelsgenerally contain new sources of CP violation and anomalous charged HiggsYukawa couplings. We present a charged-Higgs CP violation study of one such two-Higgs doublet model (2HDM) which treats the top quark differentlyfrom the other quarks. The phenomenological implications for theK-Kbar system and for B decays differ significantly from those of thestandard model (SM) and of the 2HDM's with natural flavor conservation.In particular, the SM phase in this model could take a wide range ofvalues, and the CP asymmetry in the ``gold-plated" decay mode B to J/psi K_S could be quite different from and even of opposite sign relative tothe SM prediction. A new mechanism is also noted for generating a largeneutron electric dipole moment which is close to the present experimentallimit.
Comments: 6 pages, 2 figures, talk presented by G.-H. Wu at DPF'99, Los Angeles, CA, 5-9 January 1999.