Spectra of Exclusive Semi-Leptonic Decays of B-meson in the Covariant Oscillator Quark Model
Muneyuki Ishida, Shin Ishida, Masuho Oda
Abstract
The spectra and form factors of exclusive semi-leptonic decays of B-meson are analyzed, taking account of confined effects of quarks by the Covariant Oscillator Quark Model. The predicted B --> (D*,D)l nubarl spectra with the conventional value of Vcb are fit well to the high-precision experiment. It is also shown the values of Vcb and Vub obtained through decay widths for the B --> (D,D*,rho)l nubarl processes are consistent with the presently accepted ones.
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