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The inversed amplitude method and heavy baryon chiral perturbation theory applied to pion-nucleon scattering

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Peláez Sagredo, José Ramón and Gómez Nicola, Ángel (1999) The inversed amplitude method and heavy baryon chiral perturbation theory applied to pion-nucleon scattering. Nuclear physics A, 64 (1). 96C-99C. ISSN 0375-9474

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Official URL: http://dx.doi.org/10.1016/S0375-9474(00)00225-6




Abstract

We report on our present work, where by means of the Inverse Amplitude Method we unitarize the elastic pion nucleon scattering amplitudes of Heavy Barion Chiral Perturbation Theory at O(q(3)). We reproduce the scattering up to the inelastic thresholds including the Delta(1232) resonance. The fitted chiral constants are rather different from those obtained by fitting the extrapolated threshold parameters for the non-unitarized theory.


Item Type:Article
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© Elsevier Science Bv.

Uncontrolled Keywords:Meson interactions; Unitarization
Subjects:Sciences > Physics > Physics-Mathematical models
Sciences > Physics > Mathematical physics
ID Code:30589
Deposited On:03 Jun 2015 09:33
Last Modified:10 Dec 2018 15:10

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