The KARMEN anomaly, light neutralinos and type II supernovae
High Energy Physics - Phenomenology
2009-10-31 v2
Abstract
The KARMEN experiment observes a time anomaly in events induced by pion decay at rest. This anomaly can be ascribed to the production of a new weakly interacting particle X with mass m_X\sim 34 MeV. We show that a recently proposed identification of the X particle with the lightest neutralino \chi in the frame work of the MSSM with broken R parity is in contradiction to optical observations of type II supernovae.
Keywords
Cite
@article{arxiv.hep-ph/0001160,
title = {The KARMEN anomaly, light neutralinos and type II supernovae},
author = {M. Kachelriess},
journal= {arXiv preprint arXiv:hep-ph/0001160},
year = {2009}
}
Comments
6 pages latex, 1 eps figure. Slightly revised (cf. title), matches published version