New Upper Limit for the C-Noninvariant Decay π0-->3γ
Abstract
A new search for three-photon decays of the neutral pion has been made. No signal in excess of background was observed. The upper limit for the π0-->3γ branching ratio is 3.8×10-7 (90% confidence level).
- Publication:
-
Physical Review Letters
- Pub Date:
- March 1980
- DOI:
- 10.1103/PhysRevLett.44.628
- Bibcode:
- 1980PhRvL..44..628H