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Flavor changing neutral currents from lepton and B decays in the two Higgs doublet model

  • R. A. DiazEmail author
  • R. Martinez
  • C. E. Sandoval
theoretical physics

Abstract.

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-\(\tau \) 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 Bd,s0 mesons and from \(\Delta M_{B_{d}^{0}}\). We emphasize that although the B d 0- \(\overline{B}_{d}^{0}\) mixing restricts severely the d-b mixing vertex, the upper bound for this vertex could still give a sizable contribution to the decay \(B_{d}^{0}\rightarrow \mu \overline{\mu}\) with respect to the standard model contribution, from which we see that such a vertex could still play a role in the phenomenology.

Keywords

Field Theory Elementary Particle Quantum Field Theory Particle Acceleration Neutral Current 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2005

Authors and Affiliations

  1. 1.Departamento de FísicaUniversidad Nacional de ColombiaBogotáColombia

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