Lepton Flavour Violating τ decays in a 2HDM with SU(3) Yukawa matrices

30th Annual Meeting of the Division of Particles and Fields (DPyC) of the Mexican Physical Society

López-Lozano, L.^1

Area Académica de Matemáticas y Fisica, Universidad Autónoma Del Estado de Hidalgo, Carr. Pachuca-Tulancingo Km. 4.5, Pachuca, Hidalgo

C.P. 42184, Mexico^1

关键词: Decay rate;    Lepton-flavor;    Mass matrices;    Unitary transformations;    Yukawa matrices;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/761/1/012073/pdf
DOI  :  10.1088/1742-6596/761/1/012073

来源: IOP

【 摘 要 】

Using the Lepton Flavor Violating (LFV) decay of τ with production of a pseudoscalar neutral meson P0, we calculate the parameters space of a version of 2HDM where the Yukawa matrix generated through a unitary transformation of the diagonal mass matrix. This unitary transformation corresponds to a particular invariant subgroup of SU(3). We study the channel τ →eKs0and demonstrate that it is possible to have non small couplings an at the same time a LFV decay rate very small. This analysis shed light on the flavor structure in the frame of such group. This model is a particular case of the Partially Aligned 2HDM and motivates the analysis of more channels using this model for Yukawas.