Confirmation of an enhancement in the π-π+ system at M = 1.05 GeV
Abstract
In analysis of 7733 events of the type π + N → N + π- + π+ at 2.7 GeV/ c we have confirmed the existence of a ππ enhancement with a mass of 1.05 ± 0.01 GeV. The width is ⩽ 0.08 GeV and a production cross section of 40 ± 10 μb is observed. I = 0 is preferred and l is consistent with 0 or 2.
- Publication:
-
Physics Letters B
- Pub Date:
- October 1968
- DOI:
- 10.1016/0370-2693(68)90540-6
- Bibcode:
- 1968PhLB...28...51M