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dc.contributor.authorMatsinos, Evangelos-
dc.contributor.authorRasche, Günther-
dc.date.accessioned2019-03-04T11:22:28Z-
dc.date.available2019-03-04T11:22:28Z-
dc.date.issued2013-11-03-
dc.identifier.issn0375-9474de_CH
dc.identifier.issn1873-1554de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/15773-
dc.description.abstractThe ETH model of the pion-nucleon (πN) interaction contains t-channel σ- and ρ-exchange graphs, as well as the s- and u-channel contributions with the well-established s and p baryon states with masses below 2 GeV as virtual particles; the model amplitudes obey crossing symmetry and isospin invariance. In the present work, we give the analytical expressions for the model contributions to the K-matrix elements up to (and including) the f waves. We also extract a new phase-shift solution after performing a partial-wave analysis of meson-factory π±p elastic-scattering data below 100 MeV; included in our results now are also the effects of the variation of the σ-meson mass in the interval which is currently recommended by the Particle-Data Group. Finally, we revisit the subject of the πN Σ term and, using the model amplitudes, obtain Σ=72.4±3.1 MeV. Our prediction agrees well with the result extracted with Olsson's method, after a few flaws in his paper were corrected.de_CH
dc.language.isoende_CH
dc.publisherElsevierde_CH
dc.relation.ispartofNuclear Physics Ade_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectHigh Energy Physics - Phenomenologyde_CH
dc.subject.ddc530: Physikde_CH
dc.titleAspects of the ETH model of the pion-nucleon interactionde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitut für Angewandte Mathematik und Physik (IAMP)de_CH
zhaw.organisationalunitInstitut für Mechatronische Systeme (IMS)de_CH
dc.identifier.doi10.1016/j.nuclphysa.2014.04.021de_CH
zhaw.funding.euNode_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end194de_CH
zhaw.pages.start147de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume927de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Matsinos, E., & Rasche, G. (2013). Aspects of the ETH model of the pion-nucleon interaction. Nuclear Physics A, 927, 147–194. https://doi.org/10.1016/j.nuclphysa.2014.04.021
Matsinos, E. and Rasche, G. (2013) ‘Aspects of the ETH model of the pion-nucleon interaction’, Nuclear Physics A, 927, pp. 147–194. Available at: https://doi.org/10.1016/j.nuclphysa.2014.04.021.
E. Matsinos and G. Rasche, “Aspects of the ETH model of the pion-nucleon interaction,” Nuclear Physics A, vol. 927, pp. 147–194, Nov. 2013, doi: 10.1016/j.nuclphysa.2014.04.021.
MATSINOS, Evangelos und Günther RASCHE, 2013. Aspects of the ETH model of the pion-nucleon interaction. Nuclear Physics A. 3 November 2013. Bd. 927, S. 147–194. DOI 10.1016/j.nuclphysa.2014.04.021
Matsinos, Evangelos, and Günther Rasche. 2013. “Aspects of the ETH Model of the Pion-Nucleon Interaction.” Nuclear Physics A 927 (November): 147–94. https://doi.org/10.1016/j.nuclphysa.2014.04.021.
Matsinos, Evangelos, and Günther Rasche. “Aspects of the ETH Model of the Pion-Nucleon Interaction.” Nuclear Physics A, vol. 927, Nov. 2013, pp. 147–94, https://doi.org/10.1016/j.nuclphysa.2014.04.021.


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