A relativistic potential model with few parameters qualitatively reproduces heavy meson masses and radiative widths, remaining finite at zero light quark mass.
pj h2 δij r + rirj r3 e1Ai 1 1 h1 + 1 h1 e1Ai 1 δij r + rirj r3 pj h2 −(h 1 ↔h 2, e 1 →e 2, A 1 →A 2) # , G(0) 3 = b 2
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Relativistic effects in heavy mesons
A relativistic potential model with few parameters qualitatively reproduces heavy meson masses and radiative widths, remaining finite at zero light quark mass.