S wave Kπscattering and effects of κin J/ψ\to {\bar K}^{*0}(892)K^+π^-

Feng-Kun Guo, Rong-Gang Ping, Peng-Nian Shen +2

$K\pi$ $S$ wave scattering is studied using a chiral unitary approach (ChUT) taking into account coupled channels. With the amplitudes derived from the lowest order chiral Lagrangian…