172 citations · 863 across the 42 of their papers we have counts for
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…
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…
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…
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…
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.…
Distorted Sounds: Unlocking the Physics of Modern Music
Anna Mullin, Derek Leinweber
In the production of modern music, the musical characteristics of the guitar or keyboard amplifier play an integral role in the creative process. This article explores the physics…
The temperature dependence of fractional topological charge objects
Jackson A. Mickley, Waseem Kamleh, Derek B. Leinweber
We present a novel method for defining the topological charge contained within distinct topological objects in the nontrivial ground-state fields of SU(N) lattice gauge theory. Suc…
SU(3) centre vortex geometry at finite temperature
Jackson A. Mickley, Waseem Kamleh, Derek B. Leinweber
The importance of examining the structure of centre-vortex matter in the ground-state fields of nonabelian gauge-field theory has been demonstrated in the recent centre-vortex base…
Nucleon resonance structure to 2 GeV and the nature of the Roper
Shiryo Owa, Derek B. Leinweber, Anthony W. Thomas
The study of the spectrum of excited states of the nucleon is vital to our understanding of how QCD is realized in the baryon spectrum. Using a simultaneous analysis of the pion nu…
Spectral parameters of the resonance from lattice QCD
Zhengli Wang, Derek B. Leinweber, Chuan Liu +6
We present a lattice QCD investigation of the resonance using nine Wilson-Clover ensembles with three lattice spacings and various pion masses ranging from …
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…
Center vortices and the conformal window
J. A. Mickley, D. B. Leinweber, D. Nogradi
A novel approach for estimating the lower end of the conformal window is presented through the study of center vortex geometry and its dependence on the number of…