Extra dimensions and invisible decay of orthopositronium
High Energy Physics - Phenomenology
2009-11-10 v1
Abstract
We point out that some models with infinite additional dimension(s) of Randall-Sundrum type predict the disappearance of orthopositronium (o-Ps) into additional dimension(s). The experimental signature of this effect is the o-Ps -> invisible decay of orthopositronium which may occur at a rate within three orders of magnitude of the present experimental upper limit. This result enhances existing motivations for a more sensitive search for this decay mode and suggests additional directions for testing extra dimensions in non accelerator experiments.
Keywords
Cite
@article{arxiv.hep-ph/0302205,
title = {Extra dimensions and invisible decay of orthopositronium},
author = {S. N. Gninenko and N. V. Krasnikov and A. Rubbia},
journal= {arXiv preprint arXiv:hep-ph/0302205},
year = {2009}
}
Comments
3 pages, to appear in Phys. Rev. D