Nonet Symmetry and Two-Body Decays of Charmed Mesons

Details Nonet Symmetry and Two-Body Decays of Charmed Mesons Nonet Symmetry and Two-Body Decays of Charmed Mesons

1992-07-02

arxiv.org/abs/hep-ph/9207206v1

Phys.Rev. D47 (1993) 3962-3966

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, UTAPHY-HEP-3

Scientific paper

10.1103/PhysRevD.47.3962

The decay of charmed mesons into pseudoscalar (P) and vector (V) mesons is studied in the context of nonet symmetry. We have found that it is badly broken in the PP channels and in the P sector of the PV channels as expected from the non-ideal mixing of the \eta and the \eta'. In the VV channels, it is also found that nonet symmetry does not describe the data well. We have found that this discrepancy cannot be attributed entirely to SU(3) breaking at the usual level of 20--30%. At least one, or both, of nonet and SU(3) symmetry must be very badly broken. The possibility of resolving the problem in the future is also discussed.

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