Diagrammatic analysis of hidden- and open-charm tetraquark production in $B$ decays

TL;DR

This paper analyzes the production mechanisms of hidden- and open-charm tetraquarks in B decays using topological amplitudes, proposing experimental tests and promising channels for discovering more tetraquarks.

Contribution

It introduces a diagrammatic approach to relate different tetraquark production channels and suggests experimental avenues for their detection.

Findings

Relations between production channels are established.

Proposed promising channels for tetraquark discovery.

Framework to test tetraquark nature experimentally.

Abstract

Discoveries of tetraquarks not only enrich the hadronic spectrum but also provide more platforms to understand quantum chromodynamics. We study the production processes of hidden-charm and open-charm tetraquarks in $B$ decays by analyzing their topological amplitudes. Relations between different channels are found, which confront tests by experiments to probe the nature of the tetraquarks. Furthermore, promising channels to find more tetraquarks are proposed.