Variance in the radial distribution of nuclear matter between 56Ni and 58Ni inferred from a model-independent Sum-of-Gaussian analysis of elastic proton scattering data
Differential cross sections for p-Ni56 and p-Ni58 elastic scattering, measured at low momentum transfer and at projectile energies of about 400 MeV/u with beams stored in the Experimental Storage Ring (ESR) at GSI, Darmstadt, have been analyzed up to |t|=0.06 (GeV/c)2 applying the model-independent...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-10-01
|
| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269320305797 |
| _version_ | 1818242356644675584 |
|---|---|
| author | X. Liu P. Egelhof O. Kiselev M. Mutterer |
| author_facet | X. Liu P. Egelhof O. Kiselev M. Mutterer |
| author_sort | X. Liu |
| collection | DOAJ |
| description | Differential cross sections for p-Ni56 and p-Ni58 elastic scattering, measured at low momentum transfer and at projectile energies of about 400 MeV/u with beams stored in the Experimental Storage Ring (ESR) at GSI, Darmstadt, have been analyzed up to |t|=0.06 (GeV/c)2 applying the model-independent Sum-of-Gaussians (SOG) method based on the Glauber multiple-scattering theory. The rms point matter radius of the self-conjugate doubly magic radioactive Ni56 nucleus was deduced to be 3.62(6) fm, to be compared to the known radius of the stable Ni58 nucleus, 3.67(7) fm. Although the radii of both nuclei differ only slightly, and there is close agreement of the matter radii of Ni58 from former analyses using phenomenological parametrizations of the matter distribution, the SOG method was capable of elucidating pronounced differences in the shapes of the radial matter distributions between both nuclei. Consequences for the understanding of nuclear structure in the vicinity of the N=Z=28 magic shell are briefly discussed. |
| first_indexed | 2024-12-12T13:43:56Z |
| format | Article |
| id | doaj.art-e5b8bfa3bd714be48ea17f562ac8e6d4 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-12T13:43:56Z |
| publishDate | 2020-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-e5b8bfa3bd714be48ea17f562ac8e6d42022-12-22T00:22:44ZengElsevierPhysics Letters B0370-26932020-10-01809135776Variance in the radial distribution of nuclear matter between 56Ni and 58Ni inferred from a model-independent Sum-of-Gaussian analysis of elastic proton scattering dataX. Liu0P. Egelhof1O. Kiselev2M. Mutterer3Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Sichuan University, Chengdu 610064, China; GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, GermanyGSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, GermanyGSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany; Corresponding author.GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, GermanyDifferential cross sections for p-Ni56 and p-Ni58 elastic scattering, measured at low momentum transfer and at projectile energies of about 400 MeV/u with beams stored in the Experimental Storage Ring (ESR) at GSI, Darmstadt, have been analyzed up to |t|=0.06 (GeV/c)2 applying the model-independent Sum-of-Gaussians (SOG) method based on the Glauber multiple-scattering theory. The rms point matter radius of the self-conjugate doubly magic radioactive Ni56 nucleus was deduced to be 3.62(6) fm, to be compared to the known radius of the stable Ni58 nucleus, 3.67(7) fm. Although the radii of both nuclei differ only slightly, and there is close agreement of the matter radii of Ni58 from former analyses using phenomenological parametrizations of the matter distribution, the SOG method was capable of elucidating pronounced differences in the shapes of the radial matter distributions between both nuclei. Consequences for the understanding of nuclear structure in the vicinity of the N=Z=28 magic shell are briefly discussed.http://www.sciencedirect.com/science/article/pii/S0370269320305797Nuclear radial matter density distributionModel-independent Sum-of-Gaussians (SOG) methodElastic proton scattering in inverse kinematicsDoubly magic radioactive 56Ni nucleus |
| spellingShingle | X. Liu P. Egelhof O. Kiselev M. Mutterer Variance in the radial distribution of nuclear matter between 56Ni and 58Ni inferred from a model-independent Sum-of-Gaussian analysis of elastic proton scattering data Physics Letters B Nuclear radial matter density distribution Model-independent Sum-of-Gaussians (SOG) method Elastic proton scattering in inverse kinematics Doubly magic radioactive 56Ni nucleus |
| title | Variance in the radial distribution of nuclear matter between 56Ni and 58Ni inferred from a model-independent Sum-of-Gaussian analysis of elastic proton scattering data |
| title_full | Variance in the radial distribution of nuclear matter between 56Ni and 58Ni inferred from a model-independent Sum-of-Gaussian analysis of elastic proton scattering data |
| title_fullStr | Variance in the radial distribution of nuclear matter between 56Ni and 58Ni inferred from a model-independent Sum-of-Gaussian analysis of elastic proton scattering data |
| title_full_unstemmed | Variance in the radial distribution of nuclear matter between 56Ni and 58Ni inferred from a model-independent Sum-of-Gaussian analysis of elastic proton scattering data |
| title_short | Variance in the radial distribution of nuclear matter between 56Ni and 58Ni inferred from a model-independent Sum-of-Gaussian analysis of elastic proton scattering data |
| title_sort | variance in the radial distribution of nuclear matter between 56ni and 58ni inferred from a model independent sum of gaussian analysis of elastic proton scattering data |
| topic | Nuclear radial matter density distribution Model-independent Sum-of-Gaussians (SOG) method Elastic proton scattering in inverse kinematics Doubly magic radioactive 56Ni nucleus |
| url | http://www.sciencedirect.com/science/article/pii/S0370269320305797 |
| work_keys_str_mv | AT xliu varianceintheradialdistributionofnuclearmatterbetween56niand58niinferredfromamodelindependentsumofgaussiananalysisofelasticprotonscatteringdata AT pegelhof varianceintheradialdistributionofnuclearmatterbetween56niand58niinferredfromamodelindependentsumofgaussiananalysisofelasticprotonscatteringdata AT okiselev varianceintheradialdistributionofnuclearmatterbetween56niand58niinferredfromamodelindependentsumofgaussiananalysisofelasticprotonscatteringdata AT mmutterer varianceintheradialdistributionofnuclearmatterbetween56niand58niinferredfromamodelindependentsumofgaussiananalysisofelasticprotonscatteringdata |