TL;DR
This paper reviews lattice QCD calculations of the hadron spectrum, discusses the inclusion of dynamical quarks, assesses pentaquark states, and outlines future computational and physics prospects.
Contribution
It provides an overview of current lattice QCD efforts, including recent work on pentaquarks and plans for advanced computational resources.
Findings
Progress in including dynamical quarks in spectrum calculations
Assessment of pentaquark existence from lattice QCD
Future machine development for enhanced simulations
Abstract
A brief review is given of the lattice QCD calculation of the hadron spectrum. The status of current attempts toward inclusion of dynamical up, down and strange quarks is summarized focusing on our own work. Recent work on the possible existence of pentaquark states are assessed. We touch upon the PACS-CS Project for building our next machine for lattice QCD, and conclude with a near-term physics and machine prospects.
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