Electromagnetic form Factors and Radii of the Nucleon in the Extended Vector Meson Dominance Model.
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| Title: | Electromagnetic form Factors and Radii of the Nucleon in the Extended Vector Meson Dominance Model. |
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| Authors: | Levashko, N. M.1 (AUTHOR) levashko_nm@mail.ru, Kuzmin, K. S.1,2 (AUTHOR) kkuzmin@theor.jinr.ru, Krivoruchenko, M. I.1 (AUTHOR) mikhail.krivoruchenko@itep.ru |
| Source: | Physics of Atomic Nuclei. Feb2025, Vol. 88 Issue 1, p137-149. 13p. |
| Subjects: | Vector mesons, Particles (Nuclear physics), Momentum transfer, Magnetic traps, Quarks |
| Abstract: | An extended vector meson dominance model is proposed for describing electromagnetic nucleon form factors. The model incorporates families of - and -mesons, including their excitations. Free parameters are determined through a global fit to experimental data for both space- and timelike momentum transfers. Meson masses and widths are set to empirical values, while residues at the poles of the ground-state - and -mesons align with findings from Frazer–Fulco unitarity relations and Bonn potential. The model adheres to constraints such as quark counting rules, the Okubo–Zweig–Iizuka rule, scaling relations for Sachs form factor at low and moderate momentum transfers, and suppression of Sachs form factors at the nucleon–antinucleon threshold. A good description is obtained for electromagnetic nucleon form factors across the experimentally accessible momentum range, as well as for the electric and magnetic radii, and Zemach radii of the nucleon. [ABSTRACT FROM AUTHOR] |
| Copyright of Physics of Atomic Nuclei is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 185279722 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Electromagnetic form Factors and Radii of the Nucleon in the Extended Vector Meson Dominance Model. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Levashko%2C+N%2E+M%2E%22">Levashko, N. M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> levashko_nm@mail.ru</i><br /><searchLink fieldCode="AR" term="%22Kuzmin%2C+K%2E+S%2E%22">Kuzmin, K. S.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> kkuzmin@theor.jinr.ru</i><br /><searchLink fieldCode="AR" term="%22Krivoruchenko%2C+M%2E+I%2E%22">Krivoruchenko, M. I.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mikhail.krivoruchenko@itep.ru</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Physics+of+Atomic+Nuclei%22">Physics of Atomic Nuclei</searchLink>. Feb2025, Vol. 88 Issue 1, p137-149. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Vector+mesons%22">Vector mesons</searchLink><br /><searchLink fieldCode="DE" term="%22Particles+%28Nuclear+physics%29%22">Particles (Nuclear physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Momentum+transfer%22">Momentum transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+traps%22">Magnetic traps</searchLink><br /><searchLink fieldCode="DE" term="%22Quarks%22">Quarks</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: An extended vector meson dominance model is proposed for describing electromagnetic nucleon form factors. The model incorporates families of - and -mesons, including their excitations. Free parameters are determined through a global fit to experimental data for both space- and timelike momentum transfers. Meson masses and widths are set to empirical values, while residues at the poles of the ground-state - and -mesons align with findings from Frazer–Fulco unitarity relations and Bonn potential. The model adheres to constraints such as quark counting rules, the Okubo–Zweig–Iizuka rule, scaling relations for Sachs form factor at low and moderate momentum transfers, and suppression of Sachs form factors at the nucleon–antinucleon threshold. A good description is obtained for electromagnetic nucleon form factors across the experimentally accessible momentum range, as well as for the electric and magnetic radii, and Zemach radii of the nucleon. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Physics of Atomic Nuclei is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1134/S1063778825700176 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 137 Subjects: – SubjectFull: Vector mesons Type: general – SubjectFull: Particles (Nuclear physics) Type: general – SubjectFull: Momentum transfer Type: general – SubjectFull: Magnetic traps Type: general – SubjectFull: Quarks Type: general Titles: – TitleFull: Electromagnetic form Factors and Radii of the Nucleon in the Extended Vector Meson Dominance Model. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Levashko, N. M. – PersonEntity: Name: NameFull: Kuzmin, K. S. – PersonEntity: Name: NameFull: Krivoruchenko, M. I. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 10637788 Numbering: – Type: volume Value: 88 – Type: issue Value: 1 Titles: – TitleFull: Physics of Atomic Nuclei Type: main |
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