Incompressibility in finite nuclei and nuclear matter
The incompressibility (compression modulus) K0 of infinite symmetric nuclear matter at saturation density has become one of the major constraints on mean-field models of nuclear many-body systems as well as of models of high density matter in astrophysical objects and heavy-ion collisions. It is usu...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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American Physical Society
2014
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| _version_ | 1826261585030545408 |
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| author | Stone, JR Stone, N Moszkowski, SA |
| author_facet | Stone, JR Stone, N Moszkowski, SA |
| author_sort | Stone, JR |
| collection | OXFORD |
| description | The incompressibility (compression modulus) K0 of infinite symmetric nuclear matter at saturation density has become one of the major constraints on mean-field models of nuclear many-body systems as well as of models of high density matter in astrophysical objects and heavy-ion collisions. It is usually extracted from data on the giant monopole resonance (GMR) or calculated using theoretical models. We present a comprehensive reanalysis of recent data on GMR energies in even-even 112-124Sn and 106,100-116Cd and earlier data on 58≤A≤208 nuclei. The incompressibility of finite nuclei KA is calculated from experimental GMR energies and expressed in terms of A-1/3 and the asymmetry parameter β=(N-Z)/A as a leptodermous expansion with volume, surface, isospin, and Coulomb coefficients Kvol, Ksurf, Kτ, and KCoul. Only data consistent with the scaling approximation, leading to a fast converging leptodermous expansion, with negligible higher-order-term contributions to KA, were used in the present analysis. Assuming that the volume coefficient Kvol is identified with K0, the KCoul=-(5.2±0.7) MeV and the contribution from the curvature term KcurvA-2/3 in the expansion is neglected, compelling evidence is found for K0 to be in the range 250 |
| first_indexed | 2024-03-06T19:23:41Z |
| format | Journal article |
| id | oxford-uuid:1afb76be-66f1-4567-ad69-e9ec2f6ad356 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:23:41Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:1afb76be-66f1-4567-ad69-e9ec2f6ad3562022-03-26T10:57:47ZIncompressibility in finite nuclei and nuclear matterJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1afb76be-66f1-4567-ad69-e9ec2f6ad356EnglishSymplectic Elements at OxfordAmerican Physical Society2014Stone, JRStone, NMoszkowski, SAThe incompressibility (compression modulus) K0 of infinite symmetric nuclear matter at saturation density has become one of the major constraints on mean-field models of nuclear many-body systems as well as of models of high density matter in astrophysical objects and heavy-ion collisions. It is usually extracted from data on the giant monopole resonance (GMR) or calculated using theoretical models. We present a comprehensive reanalysis of recent data on GMR energies in even-even 112-124Sn and 106,100-116Cd and earlier data on 58≤A≤208 nuclei. The incompressibility of finite nuclei KA is calculated from experimental GMR energies and expressed in terms of A-1/3 and the asymmetry parameter β=(N-Z)/A as a leptodermous expansion with volume, surface, isospin, and Coulomb coefficients Kvol, Ksurf, Kτ, and KCoul. Only data consistent with the scaling approximation, leading to a fast converging leptodermous expansion, with negligible higher-order-term contributions to KA, were used in the present analysis. Assuming that the volume coefficient Kvol is identified with K0, the KCoul=-(5.2±0.7) MeV and the contribution from the curvature term KcurvA-2/3 in the expansion is neglected, compelling evidence is found for K0 to be in the range 250 |
| spellingShingle | Stone, JR Stone, N Moszkowski, SA Incompressibility in finite nuclei and nuclear matter |
| title | Incompressibility in finite nuclei and nuclear matter |
| title_full | Incompressibility in finite nuclei and nuclear matter |
| title_fullStr | Incompressibility in finite nuclei and nuclear matter |
| title_full_unstemmed | Incompressibility in finite nuclei and nuclear matter |
| title_short | Incompressibility in finite nuclei and nuclear matter |
| title_sort | incompressibility in finite nuclei and nuclear matter |
| work_keys_str_mv | AT stonejr incompressibilityinfinitenucleiandnuclearmatter AT stonen incompressibilityinfinitenucleiandnuclearmatter AT moszkowskisa incompressibilityinfinitenucleiandnuclearmatter |