The unusual multiplet structures associated with the light spin zero mesons have recently attracted a good deal of theoretical attention. Here we discuss some aspects associated with the possibility of getting new experimental information on this topic from semi-leptonic decays of heavy charged mesons into an isosinglet scalar or pseudoscalar plus leptons.
Schechter, Joseph; Fariborz, Amir H.; Jora, Renata; and Shahid, M. Naeem, "Semi-Leptonic D_s^+(1968) Decays as a Scalar Meson Probe" (2011). Physics. 247.
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