Heavy Meson Dynamics in a QCD Relativistic Potential Model

Details Heavy Meson Dynamics in a QCD Relativistic Potential Model Heavy Meson Dynamics in a QCD Relativistic Potential Model

1994-09-29

arxiv.org/abs/hep-ph/9409441v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex, 3 pages, BARI-TH/94-185. Talk given at the workshop: "Quark confinement and the hadron spectrum", Como, 20-24 june 1994

Scientific paper

We use a QCD relativistic potential model to compute the strong coupling constant $g$ appearing in the effective Lagrangian which describes the interaction of $0^-$ and $1^-$ $\bar q Q$ states with soft pions in the limit $m_Q \to \infty$. We compare our results with other approaches; in particular, in the non relativistic limit, we are able to reproduce the constituent quark model result: $g=1$, while the inclusion of relativistic effects due to the light quark gives $g={1 \over 3}$, in agreement with QCD sum rules. We also estimate heavy meson radiative decay rates, with results in agreement with available experimental data.

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