English

TeV-scale Pseudo-Dirac Seesaw Mechanisms in an E$_6$ Inspired Model

High Energy Physics - Phenomenology 2016-08-10 v1

Abstract

TeV-scale seesaw mechanisms are interesting due to their potential testability at existing collider experiments. Herein we propose an E6_6-inspired model allowing a TeV-scale pseudo-Dirac singlet neutrino seesaw mechanism with naturally sizeable Yukawa couplings of O(102)\mathcal{O}(10^{-2}). The model also contains new U(1) gauge interactions (and associated ZZ^\prime bosons with which the singlet neutrinos can be produced at colliders), typically long-lived colour triplet fermions, SU(2) doublet fermions, and a complex scalar - potentially all at the TeV-scale. Additionally we identify three possible explanations for the 750 GeV di-photon excess.

Keywords

Cite

@article{arxiv.1605.02743,
  title  = {TeV-scale Pseudo-Dirac Seesaw Mechanisms in an E$_6$ Inspired Model},
  author = {Yi Cai and Jackson D. Clarke and Raymond R. Volkas and Tsutomu T. Yanagida},
  journal= {arXiv preprint arXiv:1605.02743},
  year   = {2016}
}

Comments

8 pages, 3 figures, 1 table

R2 v1 2026-06-22T13:56:47.239Z