Ratios of B and D meson decay constants in an improved mock meson model
نویسندگان
چکیده
منابع مشابه
Ratios of B and D Meson Decay Constants in Improved Mock Meson Model
We calculate the ratio fBs/fBd by following the Oakes’ method which is based on chiral symmetry breaking, but we improve his calculation by performing the calculation of the factor < 0|b̄γ5s|Bs >/< 0|b̄γ5d|Bd > in the mock meson model. In this calculation we improved the mock meson model by using the value of the parameter β which is obtained by the variational method in the relativistic quark mo...
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We derive formulas for the decay constants fP and fV of pseudoscalar and vector mesons in the relativistic mock meson model. Using these formulas, we obtain fP and fV of Bs, Bd, Ds, and Dd mesons as functions of the mock meson parameter β. Then by using the values of β which are obtained by the variational method in the relativistic quark model, we obtain the decay constants fP and fV of the he...
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We calculate the ratios of B and D meson decay constants by applying the variational method to the relativistic hamiltonian of the heavy meson. We adopt the Gaussian and hydrogen-type trial wave functions, and use six different potentials of the potential model. We obtain reliable results for the ratios, which are similar for different trial wave functions and different potentials. The obtained...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1996
ISSN: 0370-2693
DOI: 10.1016/0370-2693(95)01459-4