| Publikationstyp: | Beitrag in wissenschaftlicher Zeitschrift |
| Art der Begutachtung: | Peer review (Publikation) |
| Titel: | Aspects of the ETH model of the pion-nucleon interaction |
| Autor/-in: | Matsinos, Evangelos Rasche, Günther |
| DOI: | 10.1016/j.nuclphysa.2014.04.021 |
| Erschienen in: | Nuclear Physics A |
| Band(Heft): | 927 |
| Seite(n): | 147 |
| Seiten bis: | 194 |
| Erscheinungsdatum: | 3-Nov-2013 |
| Verlag / Hrsg. Institution: | Elsevier |
| ISSN: | 0375-9474 1873-1554 |
| Sprache: | Englisch |
| Schlagwörter: | High Energy Physics - Phenomenology |
| Fachgebiet (DDC): | 530: Physik |
| Zusammenfassung: | The 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. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/15773 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Lizenz gemäss Verlagsvertrag |
| Departement: | School of Engineering |
| Organisationseinheit: | Institut für Angewandte Mathematik und Physik (IAMP) Institut für Mechatronische Systeme (IMS) |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
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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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