171 citations · 772 across the 39 of their papers we have counts for
9 papers · 1 filter
Visualisation of Centre Vortex Structure
James C. Biddle, Waseem Kamleh, Derek B. Leinweber
The centre vortex structure of the gauge field vacuum is explored through the use of novel visualisation techniques. The lattice is partitioned into 3D time slices, and vor…
Partial Wave Mixing in Hamiltonian Effective Field Theory
Yan Li, Jia-jun Wu, Curtis D. Abell +2
We explore partial-wave mixing in the finite volume based on HEFT, and provide the P-Matrix to show the degree of partial-wave mixing. An example of isospin-2 scattering is us…
Partial Wave Mixing in Hamiltonian Effective Field Theory
Yan Li, Jia-jun Wu, Curtis D. Abell +2
Within general partial-wave mixing, a method for reducing the high dimension of the finite-volume Hamiltonian from Hamiltonian effective field theory is proposed. This method provi…
Pion in a uniform background magnetic field with clover fermions
Ryan Bignell, Waseem Kamleh, Derek Leinweber
Background field methods provide an important nonperturbative formalism for the determination of hadronic properties which are complementary to matrix-element calculations. However…
Role of chiral symmetry in the nucleon excitation spectrum
Adam Virgili, Waseem Kamleh, Derek Leinweber
The origin of the low-lying nature of the *(1440), or Roper resonance, has been the subject of significant interest for many years, including several investigations using lattic…
Partial Wave Mixing in Hamiltonian Effective Field Theory
Yan Li, Jia-Jun Wu, Curtis D. Abell +2
The spectrum of excited states observed in the finite volume of lattice QCD is governed by the discrete symmetries of the cubic group. This finite group permits the mixing of orbit…