Rindani, S. D. (1976) Symmetry breaking for vector couplings Physical Review D - Particles, Fields, Gravitation and Cosmology, 13 (7). pp. 1992-1993. ISSN 1550-7998
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Official URL: http://dx.doi.org/10.1103/PhysRevD.13.1992
Related URL: http://dx.doi.org/10.1103/PhysRevD.13.1992
Abstract
The decay width of about 5 keV observed for ψ→ee̅ implies that the SU(4) symmetry for the vector-meson-photon coupling constant γV is broken, and that the quantity γVMV-1/2 (where mV is the mass of the vector meson V) obeys the symmetry. Using this experimental result in conjunction with vector dominance and broken SU(3), the author calculates the decay width for ρ→ππ, and obtains Γ(ρ→ππ)=142 MeV, in improved agreement with experiment.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 94770 |
| Deposited On: | 17 Oct 2012 10:06 |
| Last Modified: | 17 Oct 2012 10:06 |
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