Abstract
We use the chiral SU(2)/sub L/ x SU(2)/sub R/ cloudy bag model to calculate magnetic dipole radiative transitions among pseudoscalar and vector mesons. A new picture for these decays emerges. Three different dynamical mechanisms, photon emission by quarks, photon emission from the pion cloud, and pion emission by mesonic bags accompanied by a transition from a vector bag to a photon, contribute singly or in combination to the 11 possible M1 transitions. The model accounts well for the observed rates. In particular, pion-cloud effects are necessary to explain the K( decays.
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