https://doi.org/10.1140/epjc/s2005-02198-8
theoretical physics
Flavor changing neutral currents from lepton and B decays in the two Higgs doublet model
Departamento de Física, Universidad Nacional de Colombia, Bogotá, Colombia
* e-mail: radiazs@unal.edu.co
Constraints on the whole spectrum of lepton flavor violating vertices are shown in the context of the standard two Higgs doublet model. The vertex involving the e-
mixing is much more constrained than the others, and the decays proportional to such a vertex are usually very suppressed. On the other hand, bounds on the quark sector are obtained from leptonic decays of the B
d,s
0 mesons and from 
. We emphasize that although the B
d
0- 
mixing restricts severely the d-b mixing vertex, the upper bound for this vertex could still give a sizable contribution to the decay 
with respect to the standard model contribution, from which we see that such a vertex could still play a role in the phenomenology.
© Springer-Verlag, 2005
