Final-state interaction phase difference in J/ψ-->ρη and ωη decays
Abstract
It is shown that the study of the ω-ρ0 interference pattern in the J/ψ-->(ρ0+ω)η-->π+π-η decay provides evidence for the large (nearly 90°) relative phase between the one-photon and the three-gluon decay amplitudes.
- Publication:
-
Physical Review D
- Pub Date:
- June 2000
- DOI:
- 10.1103/PhysRevD.61.117504
- arXiv:
- arXiv:hep-ph/9912393
- Bibcode:
- 2000PhRvD..61k7504A
- Keywords:
-
- 13.25.Gv;
- 11.30.Hv;
- 13.40.Hq;
- 14.40.Gx;
- Decays of J/psi Upsilon and other quarkonia;
- Flavor symmetries;
- Electromagnetic decays;
- Mesons with S=C=B=0 mass>2.5 GeV;
- High Energy Physics - Phenomenology;
- High Energy Physics - Experiment
- E-Print:
- 5 pages, revtex, \tightenlines, a version published in Phys. Rev. D 61, 117504 (2000)