Property of Chiral Scalar and Axial-Vector Mesons in Heavy-Light Quark System
arXiv:hep-ph/0102258 · doi:10.1143/PTP.106.373
Abstract
We investigate the properties of new scalar X_B, X_D and axial-vector X_B*, X_D* mesons, which are recently predicted, in the covariant meson-classification scheme, to exist as the partners of ground-state pseudoscalar B, D and vector B*, D* mesons, respectively, realizing a linear representation of chiral symmetry for the light quark component in heavy-light-quark meson system. The mass splittings between the respective chiral partners are shown to be equal, and the decay widths of one pion emission of X_B, X_D, X_B* and X_D* become to have a common value, due to chiral and heavy quark symmetry.
12 pages, 1 eps figure, uses ptptex.sty