Hadron spectroscopy and interactions from lattice QCD

TL;DR

This paper introduces the lattice QCD approach for studying hadronic resonances and exotic hadrons, highlighting the challenges of decay channels and threshold proximity, and presents specific results to illustrate current progress.

Contribution

It provides an introductory overview of lattice QCD methods applied to hadron spectroscopy, emphasizing recent results on conventional and exotic hadrons.

Findings

Demonstrates lattice QCD's capability to study hadron resonances.

Highlights challenges in analyzing decay channels and thresholds.

Presents specific recent results on hadron states.

Abstract

Lattice QCD approach to study the hadronic resonances and exotic hadrons is described at an introductory level. The main challenge is that these states decay strongly via one or more decay channels, and they often lie near thersholds. Specific results for conventional and exotic hadrons are shown to illustrate the current status.