No-scale supergravity confronts LEP diphoton events
High Energy Physics - Phenomenology
2008-02-03 v2
Abstract
We examine the possibility that some anomalous acoplanar diphoton events observed at LEP may be consistent with the predictions of our previously proposed one-parameter no-scale supergravity model with a light gravitino, via the process e^+e^- -> chi chi -> gamma gamma+E_miss. We find that one such event may indeed be consistent with the model predictions for m_chi \approx (60-70) GeV. This region of parameter space is also consistent with the selectron and chargino interpretations of the CDF ee gamma gamma + E_T,miss event.
Cite
@article{arxiv.hep-ph/9610235,
title = {No-scale supergravity confronts LEP diphoton events},
author = {J. Lopez and D. Nanopoulos and A. Zichichi},
journal= {arXiv preprint arXiv:hep-ph/9610235},
year = {2008}
}
Comments
9 pages, LaTeX, 4 figures (included). Updated to include full LEP161 data