Author:
Xie 谢 Yiling 易凌,Sun 孙 Hao 昊
Abstract
Abstract
In this study, we assign the tetraquark state for the
resonance and investigate the mass and decay constant of
in the framework of SVZ sum rules through a different calculation technique. Then, we calculate the strong coupling
by considering soft-meson approximation techniques within the framework of light cone sum rules, and we use the strong coupling
to obtain the width of the decay
. Our prediction for the mass agrees with the experimental measurement, and that for the decay width of
is within the upper limit.
Funder
National Natural Science Foundation of China
Subject
Astronomy and Astrophysics,Instrumentation,Nuclear and High Energy Physics