Fj. Botella et al., PARAMETER-FREE CALCULATION OF NONRESONANT 3-BODY DECAYS OF CHARMED MESONS IN A WEAK GAUGED U(4)(L)CIRCLE-TIMES-U(4)(R) CHIRAL LAGRANGIAN MODEL, Physics letters. Section B, 360(1-2), 1995, pp. 101-108
Non-resonant decays of charmed mesons into three pseudoscalars are ana
lyzed in a weak gauged U(4)(L) X U(4)(R) chiral lagrangian model. The
calculation is free of unknown parameters and only requires the masses
of pseudoscalar mesons as hadronic inputs. When comparison with exper
imental data is possible we find that in some processes we have good a
greement and in others we are an order of magnitude below. This may be
due to the absence in our calculation of final state interactions, pr
esumably important here, and the manifest difficulty in extracting the
non-resonant contribution from an experimental point of view.