Inconsistency of a Duffin-Kemmer-Petiau model for meson decay rates

Abstract
We confront a Duffin-Kemmer-Petiau model of pseudoscalar mesons (as proposed by Fischbach et al.), with data on thirteen independent ratios of meson decay rates. With five adjustable singlet-octet ratios as parameters and SU3-symmetric couplings, this formalism is able to fit only eight of the ratios, while it is inconsistent with experiment on the remaining five ratios. We conclude that this description is not a viable alternative to the usual Klein-Gordon formalism.