Implication of proton-nucleus scattering for density distributions of unstable nuclei.
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| Title: | Implication of proton-nucleus scattering for density distributions of unstable nuclei. |
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| Authors: | Rashdan, M.1 rnrashdan@hotrnail.com |
| Source: | European Physical Journal A -- Hadrons & Nuclei. Mar2003, Vol. 16 Issue 3, p371-379. 9p. |
| Subjects: | Protons, Scattering (Physics), Particles (Nuclear physics), Collisions (Nuclear physics), Particles, Nuclear energy |
| Abstract: | The use of elastic proton scattering at intermediate and high energies to obtain information about the density distributions of unstable nuclei is investigated. A comparison between the relativistic impulse approximation (RIA) and Glauber model for proton scattering from16O,40Ca,44Ca and48Ca at medium energies is performed. We used density distributions derived from the relativistic mean-field theory, employing the recent relativistic force NL-RA1, as well as experimental and phenomenological densities. It is found that the eikonal approximation can describe the cross-section only at small scattering angles and is weakly sensitive to the density distributions, while the RIA nicely produced the experimental cross-sections, even at medium and larger angles, and was very sensitive to the nuclear densities. Furthermore, the RIA better describes the isospin dependence of the cross-section. We used the RIA to investigate the density distribution of58Ca for proton scattering at different energies. It is found that the cross-section strongly depends on the parameters of the density distribution even at a small scattering angle. These results are important in extracting information about the structure of unstable nuclei. We also investigated the RIA and its sensitivity in describing halo nuclei such as6He. We used for6He a no-halo Gaussian density and a realistic-halo density that derived in the cluster orbital shell model approximation and contains the extended distribution of the valence nucleons. Comparison with the recent experimental data at GSI at 717 MeV/nucleon shows that the RIA successfully described the data at all considered range of the momentum transfer and on the other hand favor the halo structure of6He. [ABSTRACT FROM AUTHOR] |
| Copyright of European Physical Journal A -- Hadrons & 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 |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 17099325 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Implication of proton-nucleus scattering for density distributions of unstable nuclei. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Rashdan%2C+M%2E%22">Rashdan, M.</searchLink><relatesTo>1</relatesTo><i> rnrashdan@hotrnail.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+A+--+Hadrons+%26+Nuclei%22">European Physical Journal A -- Hadrons & Nuclei</searchLink>. Mar2003, Vol. 16 Issue 3, p371-379. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Protons%22">Protons</searchLink><br /><searchLink fieldCode="DE" term="%22Scattering+%28Physics%29%22">Scattering (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Particles+%28Nuclear+physics%29%22">Particles (Nuclear physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Collisions+%28Nuclear+physics%29%22">Collisions (Nuclear physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Particles%22">Particles</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+energy%22">Nuclear energy</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The use of elastic proton scattering at intermediate and high energies to obtain information about the density distributions of unstable nuclei is investigated. A comparison between the relativistic impulse approximation (RIA) and Glauber model for proton scattering from16O,40Ca,44Ca and48Ca at medium energies is performed. We used density distributions derived from the relativistic mean-field theory, employing the recent relativistic force NL-RA1, as well as experimental and phenomenological densities. It is found that the eikonal approximation can describe the cross-section only at small scattering angles and is weakly sensitive to the density distributions, while the RIA nicely produced the experimental cross-sections, even at medium and larger angles, and was very sensitive to the nuclear densities. Furthermore, the RIA better describes the isospin dependence of the cross-section. We used the RIA to investigate the density distribution of58Ca for proton scattering at different energies. It is found that the cross-section strongly depends on the parameters of the density distribution even at a small scattering angle. These results are important in extracting information about the structure of unstable nuclei. We also investigated the RIA and its sensitivity in describing halo nuclei such as6He. We used for6He a no-halo Gaussian density and a realistic-halo density that derived in the cluster orbital shell model approximation and contains the extended distribution of the valence nucleons. Comparison with the recent experimental data at GSI at 717 MeV/nucleon shows that the RIA successfully described the data at all considered range of the momentum transfer and on the other hand favor the halo structure of6He. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of European Physical Journal A -- Hadrons & 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: 10.1140/epja/i2001-10270-4 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 371 Subjects: – SubjectFull: Protons Type: general – SubjectFull: Scattering (Physics) Type: general – SubjectFull: Particles (Nuclear physics) Type: general – SubjectFull: Collisions (Nuclear physics) Type: general – SubjectFull: Particles Type: general – SubjectFull: Nuclear energy Type: general Titles: – TitleFull: Implication of proton-nucleus scattering for density distributions of unstable nuclei. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Rashdan, M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2003 Type: published Y: 2003 Identifiers: – Type: issn-print Value: 14346001 Numbering: – Type: volume Value: 16 – Type: issue Value: 3 Titles: – TitleFull: European Physical Journal A -- Hadrons & Nuclei Type: main |
| ResultId | 1 |
