Instanton effects on the twist-three light-cone distribution amplitudes of pion and light scalar mesons above 1GeV

Jin Zhang, Zhu-feng Zhang, Hong-ying Jin

By use of single instanton approximation the twist-3 light-cone distribution amplitudes of pion as well as the p-wave mesons, i.e., $f_0(1370)$, $K_0^{\ast }(1430)$ and $a_{0}(1…