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arXiv · 2201.11555

Pion Photoproduction off Nucleon with Hamiltonian Effective Field Theory

Dan Guo·Zhan-Wei Liu
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Abstract

We analyze the $\gamma N\to\pi N$ process in the negative parity channel with Hamiltonian effective filed 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 $E_{0+}$. The triquark component in $N^*(1535)$ is important for improving the consistence between our results and the experimental data.

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Dan Guo, Zhan-Wei Liu. 2022-01-27. Pion Photoproduction off Nucleon with Hamiltonian Effective Field Theory. https://doi.org/10.1103/physrevd.105.114039

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