and lepton flavor violating decays in a left-right model

L. T. Hue; Khiem Hong Phan; T. T. Hong; T. Phong Nguyen; N. H. T. Nha

doi:10.1140/epjc/s10052-024-13624-6

2023 Impact factor 4.2

Particles and Fields

Open Access

Eur. Phys. J. C (2024) 84: 1262
https://doi.org/10.1140/epjc/s10052-024-13624-6

Regular Article

${(g - 2)}_{e, μ}$ $(g-2)_{e,\mu }$ and lepton flavor violating decays in a left-right model

L. T. Hue¹^,2^a, Khiem Hong Phan³^,4, T. T. Hong⁵^,6, T. Phong Nguyen⁷ and N. H. T. Nha¹^,2

¹ Subatomic Physics Research Group, Science and Technology Advanced Institute, Van Lang University, Ho Chi Minh City, Vietnam
² Faculty of Applied Technology, School of Technology, Van Lang University, Ho Chi Minh City, Vietnam
³ Institute of Fundamental and Applied Sciences, Duy Tan University, 70000, Ho Chi Minh City, Vietnam
⁴ Faculty of Natural Sciences, Duy Tan University, 50000, Da Nang City, Vietnam
⁵ An Giang University, 880000, Long Xuyen City, Vietnam
⁶ Vietnam National University, 700000, Ho Chi Minh City, Vietnam
⁷ Department of Physics, Can Tho University, 3/2 Street, Can Tho, Vietnam

^a lethohue@vlu.edu.vn

Received: 9 September 2024
Accepted: 17 November 2024
Published online: 6 December 2024

Abstract

General expressions for one-loop contributions associated with lepton-flavor violating decays of the standard model-like Higgs boson $h \to e_{b}^{\pm} e_{a}^{\mp}$ $h\rightarrow e_b^\pm e_a^\mp$ and gauge boson $Z \to e_{b}^{\pm} e_{a}^{\mp}$ $Z\rightarrow e^\pm _b e_a^\mp$ are introduced in the unitary gauge. The results are used to discuss these decays as new physics signals in a minimal left-right symmetric model containing only one bidoublet Higgs and a $S U {(2)}_{R}$ $$SU(2)_R$$ Higgs doublet accommodating data of neutrino oscillations and ${(g - 2)}_{μ}$ $(g-2)_{\mu }$ . The numerical investigation indicates that some of these decay rates can reach near future experimental sensitivities.

© The Author(s) 2024

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