Gauge vectors and double beta decay
High Energy Physics - Phenomenology
2017-03-08 v2
Abstract
We discuss contributions to neutrinoless double beta () decay involving vector bosons. The starting point is a list of all possible vector representations that may contribute to decay via or operators at tree-level. We then identify gauge groups which contain these vectors in the adjoint representation. Even though the complete list of vector fields that can contribute to up to is large (a total of 46 vectors), only a few of them can be gauge bosons of phenomenologically realistic groups. These latter cases are discussed in some more detail, and lower (upper) limits on gauge boson masses (mixing angles) are derived from the absence of decay.
Keywords
Cite
@article{arxiv.1612.04272,
title = {Gauge vectors and double beta decay},
author = {Renato M. Fonseca and Martin Hirsch},
journal= {arXiv preprint arXiv:1612.04272},
year = {2017}
}
Comments
Matches the version accepted for publication in Physical Review D