Belle data on γγ→η'ππ are refitted using a broad JPC=0-+ peaking in the mass range 2250-2300 and X(1835), but without η(1760). There is the possibility that the broad 0-+ signal may be identified with the 0-+ glueball predicted originally by Morningstar and Peardon. The X(1835) is confirmed to have a resonant phase variation.
Physical Review D
- Pub Date:
- December 2012
- Glueball and nonstandard multi-quark/gluon states;
- High Energy Physics - Experiment;
- High Energy Physics - Phenomenology
- 7 pages, 2 figures