A large final state interaction in the 0- 0- decays of J / psi
Jan, 19999 pages
Published in:
- Phys.Rev.D 60 (1999) 051501
e-Print:
- hep-ph/9901327 [hep-ph]
Report number:
- LBNL-42731,
- UCB-PTH-99-01,
- LBL-42731
Citations per year
Abstract:
In view of important implications in the B decay, the 0-0- decay modes of J/psi are analyzed with broken flavor SU(3) symmetry in search for long-distance final-state interactions. If we impose one mild theoretical constraint on the electromagnetic form factors, we find that a large phase difference of final-state interactions is strongly favored between the one-photon and the gluon decay amplitudes. Measurement of the \pi+\pi- and K+K- cross sections off the J/psi peak in e+e- annihilation can settle the issue without recourse to theory.- J/psi(3100): hadronic decay
- pseudoscalar meson: pair production
- symmetry breaking: SU(3)
- final-state interaction: long-range
- form factor: electromagnetic
- amplitude analysis: parametrization
- electron positron: annihilation
- numerical calculations
- J/psi(3100) --> pi+ pi-
- J/psi(3100) --> K+ K-
References(10)
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