New Leptoquark Mechanism of Neutrinoless Double Beta Decay
High Energy Physics - Phenomenology
2009-12-30 v1
Abstract
A new mechanism for neutrinoless double beta () decay based on leptoquark exchange is discussed. Due to the specific helicity structure of the effective four-fermion interaction this contribution is strongly enhanced compared to the well-known mass mechanism of decay. As a result the corresponding leptoquark parameters are severely constrained from non-observation of -decay. These constraints are more stringent than those derived from other experiments.
Cite
@article{arxiv.hep-ph/9603213,
title = {New Leptoquark Mechanism of Neutrinoless Double Beta Decay},
author = {M. Hirsch and H. V. Klapdor-Kleingrothaus and S. G. Kovalenko},
journal= {arXiv preprint arXiv:hep-ph/9603213},
year = {2009}
}
Comments
LaTeX, 6 pages, 1 figure