Pion-nucleon elastic scattering amplitude within covariant baryon chiral perturbation theory up to O(p4) level
Abstract
The O(p4) calculation on pion-nucleon elastic scattering amplitude in EOMS scheme within covariant baryon chiral perturbation theory is reviewed. Numerical fits to partial wave amplitudes up to s=1.13 GeV and 1.20 GeV are performed and the results are compared with previous studies.
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