Calculation of a complete set of spin observables for proton elastic scattering from stable and unstable nuclei

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dc.contributor.authorYahya, W. A.en_ZA
dc.contributor.authorVan Der Ventel, B. I. S.en_ZA
dc.contributor.authorKaya, B. C. Kimeneen_ZA
dc.contributor.authorBark, R. A.en_ZA
dc.date.accessioned2019-10-24T14:16:45Z
dc.date.available2019-10-24T14:16:45Z
dc.date.issued2018
dc.descriptionCITATION: Yahya, W. A., et al. 2018. Calculation of a complete set of spin observables for proton elastic scattering from stable and unstable nuclei. Physical Review C, 98(1):014620, doi:10.1103/PhysRevC.98.014620.en_ZA
dc.descriptionThe original publication is available at https://journals.aps.org/prcen_ZA
dc.description.abstractA microscopic study of proton elastic scattering from unstable nuclei at intermediate energies using a relativistic formalism is presented. We have employed both the original relativistic impulse approximation (IA1) and the generalized impulse approximation (IA2) formalisms to calculate the relativistic optical potentials, with target densities derived from relativistic mean field (RMF) theory using the NL3 and FSUGold parameter sets. Comparisons between the optical potentials computed using both IA1 and IA2 formalisms and the different RMF Lagrangians are presented for both stable and unstable targets. The comparisons are required to study the effect of using IA1 versus IA2 optical potentials, with different RMF parameter sets, on elastic scattering observables for unstable targets at intermediate energies. We also study the effect of full-folding form versus the factorized form of the optical potentials on elastic scattering observables. As with the case for stable nuclei, we found that the use of the full-folding optical potential improves the scattering observables (especially spin observables) at low intermediate energy (e.g., 200MeV). No discernible difference is found at a projectile incident energy of 500MeV. To check the validity of using localized optical potential, we calculate the scattering observables using nonlocal potentials by solving the momentum space Dirac equation. The Dirac equation is transformed to two coupled Lippmann-Schwinger equations, which are then numerically solved to obtain elastic scattering observables. The results are discussed and compared to calculations involving local coordinate-space optical potentials.en_ZA
dc.description.urihttps://journals.aps.org/prc/abstract/10.1103/PhysRevC.98.014620
dc.description.versionPublisher's versionen_ZA
dc.format.extent14 pages : illustrations (chiefly colour)en_ZA
dc.identifier.citationYahya, W. A., et al. 2018. Calculation of a complete set of spin observables for proton elastic scattering from stable and unstable nuclei. Physical Review C, 98(1):014620, doi:10.1103/PhysRevC.98.014620en_ZA
dc.identifier.issn2469-9993 (online)
dc.identifier.issn2469-9985 (print)
dc.identifier.otherdoi:10.1103/PhysRevC.98.014620
dc.identifier.urihttp://hdl.handle.net/10019.1/106724
dc.language.isoen_ZAen_ZA
dc.publisherAmerican Physical Societyen_ZA
dc.rights.holderAmerican Physical Societyen_ZA
dc.subjectProton elastic scatteringen_ZA
dc.subjectDirac equationen_ZA
dc.subjectLippmann–Schwinger equationen_ZA
dc.subjectNucleien_ZA
dc.subjectSpin (Physics)en_ZA
dc.subjectNuclear physics --Researchen_ZA
dc.titleCalculation of a complete set of spin observables for proton elastic scattering from stable and unstable nucleien_ZA
dc.typeArticleen_ZA
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