Next--to--Leading Order Corrections to Meson Masses in the Heavy Quark Effective Theory

Details Next--to--Leading Order Corrections to Meson Masses in the Heavy Quark Effective Theory Next--to--Leading Order Corrections to Meson Masses in the Heavy Quark Effective Theory

1993-07-18

arxiv.org/abs/hep-ph/9307291v2

Phys.Rev.D49:2472-2489,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

33 ps., PS figures included, requires REVTEX.3 and psfig, TUM-T31-42/93/R (additional contribution to kinetic energy taken int

Scientific paper

10.1103/PhysRevD.49.2472

We use the QCD sum rule approach to calculate the splitting between vector and pseudoscalar mesons containing one light and one heavy quark, and the kinetic energy of the heavy quark. Our result for the splitting induced by the chromomagnetic interaction agrees to the experimental data on charm and beauty mesons. For the matrix element of the kinetic energy operator, we obtain the value $K=-(0.60\pm 0.10)\, {\rm GeV}^2$.

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