The S/sub 11/-P/sub 11/ phase shifts of pion-nucleon scattering

The S/sub 11/ and P/sub 11/ partial amplitude is calculated using the N/D method. The present calculation differs from the previous ones in the handling of the divergent behaviour of the forces due to first- order diagrams, by parametrizing the short-range forces, and in the way of including inelast...

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Detalles Bibliográficos
Autores principales: Barron, R H, Daboul, J
Lenguaje:eng
Publicado: 1975
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1007/BF01434055
http://cds.cern.ch/record/873173
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author Barron, R H
Daboul, J
author_facet Barron, R H
Daboul, J
author_sort Barron, R H
collection CERN
description The S/sub 11/ and P/sub 11/ partial amplitude is calculated using the N/D method. The present calculation differs from the previous ones in the handling of the divergent behaviour of the forces due to first- order diagrams, by parametrizing the short-range forces, and in the way of including inelasticity. The nucleon is obtained as a bound state with correct mass and residue and the correct S/sub 11/ and P /sub 11/ scattering lengths. The calculated S-wave and P-wave phase shifts and absorption coefficients are in substantial agreement with those from the CERN theoretical (1970) and Almehed-Lovelace (1972) phase shift analyses. (22 refs).
id cern-873173
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1975
record_format invenio
spelling cern-8731732019-09-30T06:29:59Zdoi:10.1007/BF01434055http://cds.cern.ch/record/873173engBarron, R HDaboul, JThe S/sub 11/-P/sub 11/ phase shifts of pion-nucleon scatteringParticle Physics - TheoryThe S/sub 11/ and P/sub 11/ partial amplitude is calculated using the N/D method. The present calculation differs from the previous ones in the handling of the divergent behaviour of the forces due to first- order diagrams, by parametrizing the short-range forces, and in the way of including inelasticity. The nucleon is obtained as a bound state with correct mass and residue and the correct S/sub 11/ and P /sub 11/ scattering lengths. The calculated S-wave and P-wave phase shifts and absorption coefficients are in substantial agreement with those from the CERN theoretical (1970) and Almehed-Lovelace (1972) phase shift analyses. (22 refs).oai:cds.cern.ch:8731731975
spellingShingle Particle Physics - Theory
Barron, R H
Daboul, J
The S/sub 11/-P/sub 11/ phase shifts of pion-nucleon scattering
title The S/sub 11/-P/sub 11/ phase shifts of pion-nucleon scattering
title_full The S/sub 11/-P/sub 11/ phase shifts of pion-nucleon scattering
title_fullStr The S/sub 11/-P/sub 11/ phase shifts of pion-nucleon scattering
title_full_unstemmed The S/sub 11/-P/sub 11/ phase shifts of pion-nucleon scattering
title_short The S/sub 11/-P/sub 11/ phase shifts of pion-nucleon scattering
title_sort s/sub 11/-p/sub 11/ phase shifts of pion-nucleon scattering
topic Particle Physics - Theory
url https://dx.doi.org/10.1007/BF01434055
http://cds.cern.ch/record/873173
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AT daboulj ssub11psub11phaseshiftsofpionnucleonscattering

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