93 citations · 1.4k across the 51 of their papers we have counts for
7 papers · 1 filter
Toy model to understand oscillatory behavior in timelike nucleon form factors
Ri-Qing Qian, Zhan-Wei Liu, Xu Cao +1
To understand the oscillatory behavior exhibited in the timelike electromagnetic form factors of nucleons, we propose a toy model based on the Jost function of the pair i…
Nucleon Excited States from Lattice QCD and Hamiltonian Effective Field Theory
Jia-jun Wu, Jonathan M. M. Hall, H. Kamano +6
An approach for relating the nucleon excited states extracted from lattice QCD and the nucleon resonances of experimental data has been developed using the Hamiltonian effective fi…
Phase shift formulas for baryon-baryon scattering in elongated boxes
Ning Li, Ya-Jie Wu, Zhan-Wei Liu
We have established the relations between the baryon-baryon scattering phase shifts and the two-particle energy spectrum in the elongated box. We have studied the cases with both t…
Structure of the Roper Resonance from Lattice QCD Constraints
Jia-jun Wu, Derek B. Leinweber, Zhan-wei Liu +1
Two different descriptions of the existing pion-nucleon scattering data in the region of the Roper resonance are constructed. Both descriptions fit the experimental data very well.…
Study of Low-Lying Baryons with Hamiltonian Effective Field Theory
Zhan-Wei Liu, Jonathan M. M. Hall, Waseem Kamleh +4
Drawing on experimental data for baryon resonances, Hamiltonian effective field theory (HEFT) is used to predict the positions of the finite-volume energy levels to be observed in…
Structure of the from Hamiltonian effective field theory
Zhan-Wei Liu, Jonathan M. M. Hall, Derek B. Leinweber +2
The pole structure of the is examined by fitting the couplings of an underlying Hamiltonian effective field theory to cross sections of scattering in the infinite…
Hamiltonian effective field theory study of the resonance in lattice QCD
Zhan-Wei Liu, Waseem Kamleh, Derek B. Leinweber +3
We examine the phase shifts and inelasticities associated with the Roper resonance and connect these infinite-volume observables to the finite-volume spectrum of lattic…