Electromagnetic Interactions in Heavy Hadron Chiral Theory
نویسنده
چکیده
Electromagnetic interactions are incorporated into Heavy Hadron Chiral Perturbation Theory. Short and long distance magnetic moment contributions to the chiral Lagrangian are identified, and M1 radiative decays of heavy vector mesons and sextet baryons are studied. Using recent CLEO D branching fraction ratio data, we fit the meson coupling to the axial vector Goldstone current and find g 1 = 0.34±0.48 for mc = 1700MeV. Finally, we obtain model independent predictions for total and partial widths of charm and bottom vector mesons.
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