Towards the strong decays of light strange four-quark states with $J^P=1^+$

TL;DR

This thesis investigates the decay properties of light strange four-quark exotic states with $J^P=1^+$, providing theoretical predictions for decay widths to aid future experimental searches.

Contribution

It introduces a combined symmetric analysis and phenomenological molecular approach to study decay modes of light four-quark states with specific quantum numbers.

Findings

Decay widths of certain states can reach several MeV.

Two-body and three-body decay modes are quantitatively estimated.

Results support future experimental identification of these exotic states.

Abstract

This thesis considers the decays of fully light four quark exotic as the main subject. In the context, we study the possible decays from general symmetric analysis: $uu\bar d\bar s$, $dd\bar s\bar u$, $ds\bar u \bar u$, and $su\bar d \bar d$. Using the light quark flavor symmetry, we discuss the decay modes of decuplet and 27 multiplet with $J^P=1^+$. Further more, the phenomenological hadronic molecular approach is employed for the calculation of respective decay modes. Our results show that the total decay widths of $T_{\rho K}$ and $S_{\rho K^*}$ can reach several MeV. The two-body and three-body decay widths are further obtained respectively. These are excepted to be fairly valuable supports for future search experiments.