A new experiment to search for the invisible decay of the orthopositronium
- Crivelli, P.
- Badertscher, A.
- Fetscher, W.
- Gninenko, S.N.
- Peigneux, J.P.
- Rubbia, A.
- Sillou, D.
DOIAbstract
We propose an experiment to search for invisible decays of orthopositronium (o-Ps) with a 90% confidence sensitivity in the branching ratio as low as $10^{-8}$. Evidence for this decay mode would unambigously signal new physics: either the existence of extra--dimensions or fractionally charged particles or new light gauge bosons. The experimental approach and the detector components of the proposed experiment are described
Add to ORKG