scholarly journals Lepton flavor conservingZ→l+l−decays in the general two Higgs doublet model

2002 ◽  
Vol 65 (3) ◽  
Author(s):  
E. O. Iltan
Keyword(s):  
Higgs Doublet ◽  
Lepton Flavor ◽  
Doublet Model ◽  
Two Higgs Doublet Model

scholarly journals LEPTON-FLAVOR-VIOLATING τ DECAYS IN TWO-HIGGS-DOUBLET MODEL III

2010 ◽  
Vol 25 (25) ◽  
pp. 4827-4837 ◽  
Author(s):  
WEN-JUN LI ◽  
YING-YING FAN ◽  
LIN-XIA LÜ ◽  
SU-ZHI GAO ◽  
GONG-WEI LIU
Keyword(s):  
Perturbation Theory ◽  
Parameter Space ◽  
Chiral Perturbation Theory ◽  
Higgs Doublet ◽  
Higgs Bosons ◽  
Chiral Perturbation ◽  
Model Parameter ◽  
Lepton Flavor ◽  
Doublet Model ◽  
Two Higgs Doublet Model

We study the lepton-flavor-violating processes of τ- → μ-PP decays with PP = K+K-, [Formula: see text], π+π-, π0π0 in the framework of two-Higgs-doublet model III by virtue of the chiral perturbation theory. In this model, only three neutral Higgs bosons contribute to these decays. With the current experimental constraints, we show that (a) the contributions of the |λuu(dd)| term are very small for these four decays; (b) we get the correlation between |λss| and |λτμ|; for |λτμ| ~ 10–400, one has |λss| ~ 40–1; (c) in the existing model parameter space, Br (τ- → μ- K+K-) could reach the order of [Formula: see text], but Br (τ → μ-π+π-/π0π0) are too small to be observed.

scholarly journals CHARGED LEPTON FLAVOR PHYSICS AND EXTRA DIMENSIONS

2007 ◽  
Vol 22 (20) ◽  
pp. 1513-1531
Author(s):  
E. O. ILTAN
Keyword(s):  
Charged Lepton ◽  
Extra Dimensions ◽  
Zero Mode ◽  
Dipole Moments ◽  
Higgs Doublet ◽  
Lepton Flavor ◽  
Gaussian Profile ◽  
Doublet Model ◽  
Two Higgs Doublet Model ◽  
Physical Quantities

We estimate the charged lepton electric dipole moments and the branching ratios of radiative lepton flavor violating decays in the framework of the two Higgs doublet model with the inclusion of two extra dimensions. Here, we consider that the new Higgs doublet is accessible to one of the extra dimensions with a Gaussian profile and the fermions are accessible to the other extra dimension with uniform zero-mode profile. We observe that the numerical values of the physical quantities studied enhance with the additional effects due to the extra dimensions and they are sensitive to the new Higgs localization.

scholarly journals RADIATIVE LEPTON FLAVOR VIOLATING DECAYS IN THE RANDALL–SUNDRUM BACKGROUND WITH LOCALIZED LEPTONS

2008 ◽  
Vol 23 (07) ◽  
pp. 1055-1073 ◽  
Author(s):  
E. O. ILTAN
Keyword(s):  
Charged Lepton ◽  
Higgs Doublet ◽  
Branching Ratios ◽  
Lepton Flavor ◽  
Doublet Model ◽  
Two Higgs Doublet Model

We study the radiative lepton flavor violating li→ ljγ decays in the two-Higgs doublet model, respecting the Randall–Sundrum scenario and estimate the contributions of the KK modes of left- (right-)handed charged lepton doublets (singlets) on the branching ratios. We observe that the branching ratios are sensitive to the contributions of the charged lepton KK modes.

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