Evidence for the Kinematic Origin of theHEnhancement

Abstract

The reaction ${\pi }^{+}p\to {\pi }^{+}{\pi }^{-}{\pi }^0{\Delta }^{++}$ has been studied in the range 3-4 GeV/c of incident pion momenta. Results suggest that the origin of the $H$ enhancement is purely a kinematic one that arises from the $\rho$-band cut in an essentially structureless three-pion Dalitz plot.