Further study of with coupled-channel approach and hadron molecular picture
arXiv:2107.14470 · doi:10.1103/PhysRevD.104.114001
Abstract
The was previously proposed to be dynamically generated state by interactions between vector mesons. We extend the study of by including its coupling to channels of pseudoscalar mesons within coupled-channel approach. The channels involved are . We show that the pole assigned to does not change much. Then we calculate the partial decay widths of as the coupled channel dynamically generated state as well as assuming it to be pure molecule. In both cases the ratios of partial decay widths agree fairly with that in PDG.
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