Improved unitarized heavy baryon chiral perturbation theory for pi N scattering to fourth order
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Improved unitarized heavy baryon chiral perturbation theory for pi N scattering to fourth order

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Improved unitarized heavy baryon chiral perturbation theory for pi N scattering to fourth order

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Gómez Nicola, Ángel; Nieves Pamplona, Juan Miguel; Peláez Sagredo, José Ramón; Ruiz Arriola, Enrique
This document is a artículoDate2004

Este documento está disponible también en : http://hdl.handle.net/10550/39250
We extend our previous analysis of the unitarized pion-nucleon scattering amplitude including up to fourth order terms in heavy baryon chiral perturbation theory. We pay special attention to the stability of the generated Delta(1232) resonance, the convergence problems, and the power counting of the chiral parameters.

    Gómez Nicola, Ángel Nieves Pamplona, Juan Miguel Peláez Sagredo, José Ramón Ruiz Arriola, Enrique 2004 Improved unitarized heavy baryon chiral perturbation theory for pi N scattering to fourth order Physical Review D 69 7 076007
http://dx.doi.org/10.1103/PhysRevD.69.076007

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