Unitarity Constraints on effective interaction in $πN$ scattering

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dc.creatorLuo, Mingxing
dc.creatorWang, Yong
dc.creatorZhu, Guohuai
dc.date2006-11-27
dc.date2007-05-17
dc.date.accessioned2026-07-07T10:37:27Z
dc.date.available2026-07-07T10:37:27Z
dc.descriptionPositivity constraints are derived on pion-nucleon scattering amplitudes and their even-order derivatives inside the Mandelstam Triangle with the help of dispersion relations. Fairly interesting constraints are obtained on some of the low energy constants, by a combination of the chiral perturbation theory for heavy baryons and existing fitting results from available pion-nucleon phase shifts at intermediate energies.
dc.descriptionversion to appear in Phys. Lett. B. 6 pages
dc.identifierhttps://arxiv.org/abs/hep-ph/0611325
dc.identifierhttp://arxiv.org/abs/hep-ph/0611325
dc.identifierPhys.Lett.B649:162-165,2007
dc.identifierdoi:10.1016/j.physletb.2007.03.052
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/180386
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.subjectNuclear Theory
dc.titleUnitarity Constraints on effective interaction in $πN$ scattering
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