Isospin mixing in charmonium states
- Author(s): Bander, M
- et al.
Published Web Locationhttps://doi.org/10.1103/PhysRevD.16.2900
The "molecular" charmonium models predict both I = 0 and I = 1 states. The closeness of one of these (4.028 GeV) to one of its main thresholds and the large electromagnetic mass splitting of its daughters may induce a large mixing between states of different isospin. This would manifest itself in deviations from unity of the ratio of charged to neutral decay modes. © 1977 The American Physical Society.