Heavy Quark Kinetic Energy in B Mesons by a QCD Relativistic Potential Model

The matrix element of the kinetic energy operator between B meson states is computed by means of a QCD relativistic potential model, with the result: $μ_π^2=0.66 GeV^2$. A comparison with the outcome of other theoretical approaches and a discussion of the phenomenological implications of this result are carried out.

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