12 papers · 1 filter
Pion photoproduction of nucleon excited states with Hamiltonian effective field theory
Yu Zhuge, Dan Guo, Zhan-Wei Liu +2
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 fin…
Structure of the with Hamiltonian Effective Field Theory
Fang-Chao Han, Zhan-Wei Liu, Derek B. Leinweber +1
We investigate the internal structure of the by analyzing lattice QCD simulation and experimental data within Hamiltonian effective field theory, considering both $J^P…
Novel insight into centre-vortex geometry in four dimensions
Jackson A. Mickley, Chris Allton, Ryan Bignell +1
Centre-vortex surfaces are mapped out in four dimensions within the framework of SU(3) lattice gauge theory to understand the role of secondary loops that develop in three-dimensio…
Center vortices in the novel phase of staggered fermions
Jackson A. Mickley, Derek B. Leinweber, Daniel Nogradi
The geometry of center vortices is studied in the novel lattice-artefact phase that appears with staggered fermions to elucidate any insight provided by the center-vortex degrees o…
Structure of center-vortex matter in SU(4) Yang-Mills theory
Jackson A. Mickley, Derek B. Leinweber, Luis E. Oxman
The structure of center vortices is studied in SU(4) Yang-Mills theory for the first time to illuminate the interplay between elementary (center charge ) and doubly charged…
Centre vortices in thermal lattice QCD with dynamical fermions
Jackson Mickley, Chris Allton, Ryan Bignell +1
Evidence for a second finite-temperature transition in Quantum Chromodynamics (QCD) is revealed through the study of centre vortex geometry and its temperature-dependent evolution.…