Observation of radiative overlinepp annihilation into a Φ meson
Abstract
The annihilation overlinepp → Φγ has been investigated with the Crystal Barrel detector at LEAR for antiprotons stopped in liquid hydrogen. The observed branching ratio BR( overlinepp → Φγ = (1.7 ± 0.4) · 10 -5 is almost two orders of magnitude higher than expected from the OZI-rule. As a by-product, the branching ratios BR( overlinepp → K LK S) = (9.0 ± 0.6) · 10 -4 and BR( overlinepp → Φπ 0) = (5.5 ± 0.7) · 10 -4 have been measured.
- Publication:
-
Physics Letters B
- Pub Date:
- February 1995
- DOI:
- 10.1016/0370-2693(95)00141-7
- Bibcode:
- 1995PhLB..346..363A