SU(3) analysis of fully-light tetraquarks in heavy meson weak decays

TL;DR

This paper uses SU(3) symmetry to analyze heavy meson decays into fully-light tetraquarks and pseudoscalar mesons, identifying promising channels for experimental observation.

Contribution

It provides a detailed SU(3) tensor analysis of tetraquark flavor components and predicts decay channels likely to be observed experimentally.

Findings

List of decay channels with highest experimental detection potential.

SU(3) tensor reduction for fully-light tetraquarks.

Identification of golden decay channels for future experiments.

Abstract

We perform a SU(3) analysis for both semi-leptonic and non-leptonic heavy meson weak decays into a pseudoscalar meson and a fully-light tetraquark in 10 or 27 representation. A reduction of the SU(3) representation tensor for the fully-light tetraquarks is produced and all the flavor components for each representation tensor are listed. The decay channels we analysis include $B/D \to U/T~P~l\nu$, $B/D \to U/T~P $ and $B_c \to U/T~P/D$, with $U/T$ represents a fully-light tetraquark in 10 or 27 representation and $P$ is a pseudoscalar meson. Finally, among these results we list all the golden decay channels which are expected to have more possibilities to be observed in experiments.