Neutron Electric Dipole Moment in Two Higgs Doublet Model
Abstract
We study the effect of the ``chromoelectric'' dipole moment on the electric dipole moment (EDM) of the neutron in the two Higgs doublet model. We systematically investigate Weinberg's operator O_{3g} = GGtilde{G} and the operator O_{qg} = bar{q}σtilde{G}q, in the cases tanβ gg 1, tanβ ll; 1 and tanβ =~ 1. It is shown that O_{sg} gives the main contribution to the neutron EDM compared to the other operators, and also that the contributions of O_{ug} and O_{3g} cancel out each other. It is pointed out that the inclusion of second lightest neutral Higgs scalar adding to the lightest one is of essential importance to estimate the neutron EDM. The neutron EDM is considerably reduced due to the destructive contribution with each other if the mass difference of the two Higgs scalars is of the order O(50 GeV).
 Publication:

Progress of Theoretical Physics
 Pub Date:
 May 1994
 DOI:
 10.1143/ptp/91.5.915
 arXiv:
 arXiv:hepph/9401331
 Bibcode:
 1994PThPh..91..915H
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 20 pages with 12 figures. Figures will be sent by postal mail if requested. Latex