Probing Kaons as Light-Strange Tetraquarks through Spectral and Decay Dynamics

TL;DR

This paper investigates the spectral and decay properties of light-strange tetraquark states, modeled as diquark-antidiquark systems, to interpret recent experimental observations of kaon-like states at BESIII and LHCb.

Contribution

It introduces a potential-based phenomenological approach to calculate mass spectra and decay behaviors of specific tetraquark configurations, linking theoretical models with experimental data.

Findings

Mass spectra of tetraquark states are computed using the Cornell potential.

Decay properties are analyzed via Fierz rearrangement techniques.

Comparison with experimental states provides insights into light-light tetraquark systems.

Abstract

Motivated by the discovery of several kaon-like states observed at BESIII and LHCb, this study explores S-wave and P-wave tetraquark states with quark contents $ss\bar{s}\bar{q}$ and $sq\bar{q}\bar{q}$ using potential-based phenomenology. The tetraquarks are modeled as diquark-antidiquark systems in antitriplet-triplet and sextet-antisextet color configurations. The mass spectra are calculated using the Cornell potential, while decay properties are analyzed through Fierz rearrangement. A comparison with experimentally observed states is provided to enhance our understanding of light-light tetraquark systems with non-homogeneous quark compositions.