Generalized Lepton Number and Dark Left-Right Gauge Model
High Energy Physics - Phenomenology
2010-01-05 v2
Abstract
In a left-right gauge model of particle interactions, the left-handed fermion doublet (nu,e)_L is connected to its right-handed counterpart (n,e)_R through a scalar bidoublet so that e_L pairs with e_R, and nu_L with n_R to form mass terms. Suppose the latter link is severed without affecting the former, then n_R is not the mass partner of nu_L, and as we show in this paper, becomes a candidate for dark matter which is relevant for the recent PAMELA and ATIC observations. We accomplish this in a specific nonsupersymmetric model, where a generalized lepton number can be defined, so that n_R and W_R are odd under R = (-1)^{3B+L+2j}. Fermionic leptoquarks are also predicted.
Cite
@article{arxiv.0901.0981,
title = {Generalized Lepton Number and Dark Left-Right Gauge Model},
author = {Shaaban Khalil and Hye-Sung Lee and Ernest Ma},
journal= {arXiv preprint arXiv:0901.0981},
year = {2010}
}
Comments
Version to appear in PRD (Rapid Communication)