Asymptotic nucleon form factors from current algebra and the Regge model

Current algebra identities and the Regge model are used in order to obtain the asymptotic behaviour of the electric and magnetic nucleon form factors. This is done for the scattering of an axial current on a spin-1/2 target. It is shown that the scattering amplitude can be decomposed into a set of s...

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Autores principales: Dominguez, C.A., Zandron, O.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03693546_v3_n2_p298_Dominguez
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spelling todo:paper_03693546_v3_n2_p298_Dominguez2023-10-03T15:28:21Z Asymptotic nucleon form factors from current algebra and the Regge model Dominguez, C.A. Zandron, O. Current algebra identities and the Regge model are used in order to obtain the asymptotic behaviour of the electric and magnetic nucleon form factors. This is done for the scattering of an axial current on a spin-1/2 target. It is shown that the scattering amplitude can be decomposed into a set of suitable invariant scalar amplitudes, free of kinematical singularities, for which a pure Regge model can be safely assumed in both s and {Mathematical expression} channels. In this way, the relevant amplitudes furnish an asymptotic expression for the nucleon form factors, whose behaviour for large t is {Mathematical expression}, where α(s) and {Mathematical expression} are the trajectories exchanged in the baryonic channels, M the nucleon mass and n1, n2 odd integer numbers. © 1971 Società Italiana di Fisica. Fil:Dominguez, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03693546_v3_n2_p298_Dominguez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Current algebra identities and the Regge model are used in order to obtain the asymptotic behaviour of the electric and magnetic nucleon form factors. This is done for the scattering of an axial current on a spin-1/2 target. It is shown that the scattering amplitude can be decomposed into a set of suitable invariant scalar amplitudes, free of kinematical singularities, for which a pure Regge model can be safely assumed in both s and {Mathematical expression} channels. In this way, the relevant amplitudes furnish an asymptotic expression for the nucleon form factors, whose behaviour for large t is {Mathematical expression}, where α(s) and {Mathematical expression} are the trajectories exchanged in the baryonic channels, M the nucleon mass and n1, n2 odd integer numbers. © 1971 Società Italiana di Fisica.
format JOUR
author Dominguez, C.A.
Zandron, O.
spellingShingle Dominguez, C.A.
Zandron, O.
Asymptotic nucleon form factors from current algebra and the Regge model
author_facet Dominguez, C.A.
Zandron, O.
author_sort Dominguez, C.A.
title Asymptotic nucleon form factors from current algebra and the Regge model
title_short Asymptotic nucleon form factors from current algebra and the Regge model
title_full Asymptotic nucleon form factors from current algebra and the Regge model
title_fullStr Asymptotic nucleon form factors from current algebra and the Regge model
title_full_unstemmed Asymptotic nucleon form factors from current algebra and the Regge model
title_sort asymptotic nucleon form factors from current algebra and the regge model
url http://hdl.handle.net/20.500.12110/paper_03693546_v3_n2_p298_Dominguez
work_keys_str_mv AT dominguezca asymptoticnucleonformfactorsfromcurrentalgebraandthereggemodel
AT zandrono asymptoticnucleonformfactorsfromcurrentalgebraandthereggemodel
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