Testing New TeV-scale Seesaw Mediators at the LHC
High Energy Physics - Phenomenology
2011-05-30 v1 High Energy Physics - Experiment
Abstract
We propose TeV-scale Dirac fermions producing Majorana masses of the known neutrinos via tree-level seesaw, different from standard type I and III seesaw. The employed weak five-plet with nonzero hypercharge leads to new seesaw formula m_\nu ~ v^6/M^5 and to empirical masses m_\nu ~ 10^{-1} eV for M ~ TeV new states. For a limited range of the parameter space, where M < a few 100 GeV, the proposed mechanism is testable at the LHC via characteristic decays of Dirac type heavy leptons, produced by a Drell-Yan fusion.
Cite
@article{arxiv.1105.5561,
title = {Testing New TeV-scale Seesaw Mediators at the LHC},
author = {Ivica Picek and Branimir Radovcic},
journal= {arXiv preprint arXiv:1105.5561},
year = {2011}
}
Comments
2 pages, 1 figure