2025/11/27 by Zhuge, Yu, Guo, Dan, Liu, Zhan-Wei +2
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions
paper · doi:10.48550/arxiv.2511.22479
openalex publication_date 2025/11/27 · openalex created_date 2025/12/03 · openalex updated_date 2026/07/28
Over the past few years, Hamiltonian effective field theory has been successfully applied to studies of nucleon and hyperon excited states. By discretizing the Hamiltonian in a finite volume, one can obtain the energy spectrum and compare it with the results calculated from lattice QCD. Through the analysis of experimental data, Hamiltonian effective field theory provides a framework that connects the finite-volume spectra from lattice QCD to infinite-volume scattering observables. The model independence of the approach is well preserved under the combined constraints from lattice QCD and experimental data. Building on these developments, recent works have attempted to extend HEFT to electromagnetic processes. Meanwhile, lattice QCD has also gradually advanced into the study of electromagnetic interactions. The combination of these analyses will undoubtedly deepen our understanding of light resonances.