• Open Access

Leptogenesis with TeV Scale WR

Pei-Hong Gu and Rabindra N. Mohapatra
Phys. Rev. D 97, 075014 – Published 12 April 2018

Abstract

Successful leptogenesis within the conventional TeV-scale left-right implementation of type-I seesaw has been shown to require that the mass of the right-handed WR± boson should have a lower bound much above the reach of the Large Hadron Collider. This bound arises from the necessity to suppress the washout of lepton asymmetry due to WR±-mediated ΔL0 processes. We show that in an alternative quark seesaw realization of left-right symmetry, the above bound can be avoided. Lepton asymmetry in this model is generated not via the usual right-handed neutrino decay but rather via the decay of new heavy scalars producing an asymmetry in the BL carrying Higgs triplets responsible for type-II seesaw, whose decay leads to the lepton asymmetry.

  • Received 6 December 2017

DOI:https://doi.org/10.1103/PhysRevD.97.075014

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & FieldsGravitation, Cosmology & Astrophysics

Authors & Affiliations

Pei-Hong Gu1,* and Rabindra N. Mohapatra2,†

  • 1School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
  • 2Maryland Center for Fundamental Physics and Department of Physics, University of Maryland, College Park, Maryland 20742, USA

  • *peihong.gu@sjtu.edu.cn
  • rmohapat@umd.edu

Article Text

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Issue

Vol. 97, Iss. 7 — 1 April 2018

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