Covariant generalization of the ISGW quark model
arXiv:hep-ph/9509332 · doi:10.1103/PhysRevD.52.6466
Abstract
A fairly general Lorentz-covariant quark model of mesons is constructed. It has several versions whose nonrelativistic limit corresponds to the well-known Isgur, Scora, Grinstein, and Wise model. In the heavy-quark limit, the covariant model naturally and automatically produces the heavy-quark symmetry results for meson decay constants and semileptonic decay form factors. The meson decay constants and the Isgur-Wise functions are calculated for various versions of the covariant model and compared with other estimates. A general and adaptable structure of the covariant model ensures that it can be used to describe transitions involving light and/or heavy mesons.
25 pages, latex, 2 figures available upon request. To appear in Phys. Rev. D
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