Sigma/Glueball Decay of D$^+$ and D$^+_s$
Abstract
Description
Recently the D$^+$ charm meson was observed to have a clear branching ratio into the low energy $π-π$ sigma resonance, while this channel was not detected in the D$_s^+$ decay. It is shown that this is consistent with the standard treatment of exclusive charm meson decays and a proposed glueball/sigma picture.
typos corrected
typos corrected