A Supersymmetric Resolution of the KARMEN Anomaly
High Energy Physics - Phenomenology
2011-02-16 v2
Abstract
We consider the hypothesis that the recently reported anomaly in the time structure of signals in the KARMEN experiment is due to the production of a light photino (or Zino) which decays radiatively due to violation of -parity. Such a particle is shown to be consistent with all experimental data and with cosmological nucleosynthesis. There are difficulties with constraints from SN~1987A but these may be evaded if squarks are non-degenerate in mass.
Cite
@article{arxiv.hep-ph/9511357,
title = {A Supersymmetric Resolution of the KARMEN Anomaly},
author = {Debajyoti Choudhury and Subir Sarkar},
journal= {arXiv preprint arXiv:hep-ph/9511357},
year = {2011}
}
Comments
LaTeX; 8 pages, 2 figures (uuencoded compressed postscript files included); Physics Letters B (in press); (Changes: References updated ; One expression corrected without any changes in conclusions)