Tetraquark mixing framework to explain two light-meson nonets

Abstract

In this talk, we summarize our recent works on the tetraquark mixing framework for the two light-meson nonets in the $J^{PC}=0^{++}$ channel, the light nonet [$a_0(980)$, $K_0^{\ast }(700)$, $f_0(500)$, $f_0(980)$] and the heavy nonet [$a_0(1450)$, $K_0^{\ast }(1430)$, $f_0(1370)$, $f_0(1500)$]. We briefly explain this mixing framework and present various phenomenological signatures to support this picture.

Comments: 5 pages, Talk given at the XVIII International Conference on Hadron Spectroscopy and Structure(HADRON2019), August 16-21, Guilin, China