Heavy meson observables and Dyson Schwinger equations.
Dyson-Schwinger equation (DSE) studies show that the b-quark mass-function is approximately constant, and that this is true to a lesser extent for the c-quark. This observation provides the basis for a study of the leptonic and semileptonic decays of heavy pseudoscalar mesons using a ''heavy-quark'' limit of the DSES, which, when exact, reduces the number of independent form factors. Semileptonic decays with light mesons in the final state are also accessible because the DSES provide a description of light-quark propagation characteristics and light-meson structure. A description of B-meson decays is straightforward, however, the study of decays involving the D-meson indicates that c-quark mass-corrections are quantitatively important.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 11052
- Report Number(s):
- ANL/PHY/CP-97471; TRN: US0104241
- Resource Relation:
- Conference: International Conference on Problems of Quantum Field Theory (dedicated to the 90th anniversary of D.I. Blokhintsev 1908-1979), Dubna (RU), 07/13/1998--07/17/1998; Other Information: PBD: 20 Oct 1998
- Country of Publication:
- United States
- Language:
- English
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