Vol. 29 No. 1 (2019)

Lepton Flavor Violation in Economical 3-3-1 Model with Neutrino Singlets

Dinh Phan Khoi
Department of Physics, Vinh University, 182 Le Duan, Vinh City, Nghe An, Vietnam
Hoang Hanh Phuong
HPU2, Vietnam.
Ha Thanh Hung
Department of Physics, Hanoi Pedagogical University 2, Vinh Phuc, Vietnam.

Published 12-03-2019


  • Electroweak interactions,
  • Models beyond the Standard Model,
  • Non-standard-model neutrinos,
  • right-handed neutrinos,
  • etc.

How to Cite

Hue, L. T., Khoi, D. P., Phuong, H. H., & Hung, H. T. (2019). Lepton Flavor Violation in Economical 3-3-1 Model with Neutrino Singlets. Communications in Physics, 29(1), 87. https://doi.org/10.15625/0868-3166/29/1/13556


Lepton flavor violating (LFV) decays of charged leptons \(\mu\rightarrow e\gamma\)  and SM-like Higgs boson \(h\rightarrow \mu\tau\) are discussed in the framework of the  economical 3-3-1 model  adding three additional singlets neutrinos (E331\(X_R\)). We will show that the appearance of new neutrinos and charged Higgs bosons in this model can result in interesting regions of the parameter space, which satisfy  the recent experimental bound of \(Br(\mu\rightarrow e\gamma)\)  as well as give large \(Br(h\rightarrow \mu\tau)\geq \mathcal{O}(10^{-7})\) . In these regions,  the charged Higgs boson mass lies within the range of \(2-3\) TeV. Our results show that the LFV decays are important channels to distinguish the E331\(X_R\)  and the original economical (E331) models, which predicts suppressed LFV decay rates.


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