Pion photoproduction off nucleon with Hamiltonian effective field theory
Abstract
We analyze the γ N →π N process in the negative parity channel with Hamiltonian effective field theory, which is successful in studying the nucleon resonances associated with the meson-nucleon scattering and lattice QCD simulations. We provide the scattering amplitude of pion photoproduction and extract the electric dipole amplitudes E0 +. The bare N*(1535 ) is important for improving the consistency between our results and the experimental data.
- Publication:
-
Physical Review D
- Pub Date:
- June 2022
- DOI:
- 10.1103/PhysRevD.105.114039
- arXiv:
- arXiv:2201.11555
- Bibcode:
- 2022PhRvD.105k4039G
- Keywords:
-
- High Energy Physics - Phenomenology;
- Nuclear Theory
- E-Print:
- 10 pages, 4 figures