Integrating Hamiltonian Effective Field Theory with Lattice QCD and Experimental Results to study Heavy Exotic Hadron Spectroscopy

• Project/Area Number: 24K17055
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: WANG GuangJuan 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (30976311)
• Project Period (FY): 2024-04-01 – 2027-03-31
• Project Status: Granted (Fiscal Year 2024)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2026: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2025: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2024: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: exotic states / hadron interaction / multi-quark system

Outline of Research at the Start

Since 2003, multi-quark exotic hadrons have been discovered in experiments like Belle and LHCb. However, their inner structures cannot be understood by existing effective theories and remain unclear. The project employs the Hamiltonian effective field theory (HEFT) to understand these structures, merging long-range hadronic and short-range quark dynamics. By simulating experimental patterns and energy levels in Lattice QCD, this project aims to elucidate the structures of exotic hadrons. The approach also offers avenues for probing exotic matter in upcoming Belle II and J-PARC experiments.