Global properties of even-even superheavy nuclei in macroscopic-microscopic models
| dc.contributor.author | BARAN, A. | |
| dc.contributor.author | LOJEWSKI, Z. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | SIEJA, K. | |
| dc.contributor.author | KOWAL, M. | |
| dc.date.issued | 2005 | |
| dc.identifier.issn | 2469-9985 | |
| dc.description.abstractEn | A systematic study of global properties of superheavy nuclei in the framework of macroscopic-microscopic method is performed. Equilibrium deformations, masses, quadrupole moments, radii, shell energies, fission barriers and half-lives are calculated using the following macroscopic models: Myers-Swiatecki liquid drop, droplet, Yukawa-plus-exponential, and Lublin-Strasbourg drop. Shell and pairing energies are calculated in Woods-Saxon potential with a universal set of parameters. The analysis covers a wide range of even-even superheavy nuclei from Z=100 to 122. Magic and semimagic numbers occurring in this region are indicated and their influence on the observables is discussed. The strongest shell effects appear at proton number Z=114 and at neutron number N=184. Deformed shell closures are found at N=152 and 162. Spontaneous fission half-lives are calculated in a dynamical approach where the full minimization of the action integral in a three-dimensional deformation space of $\beta$ deformations is performed. The fission half-lives obtained this way are two orders of magnitude smaller than the ones resulting from static calculations. The agreement of theoretical results and experimental data is satisfying. | |
| dc.language.iso | en | |
| dc.publisher | American Physical Society | |
| dc.subject.en | superheavy nuclei | |
| dc.subject.en | deformed nuclei | |
| dc.subject.en | nuclear shape | |
| dc.subject.en | nuclear mass | |
| dc.subject.en | quadrupole moments | |
| dc.subject.en | nuclear electric moment | |
| dc.subject.en | nuclear size | |
| dc.subject.en | nuclear shell model | |
| dc.subject.en | nuclear liquid drop model | |
| dc.subject.en | spontaneous fission | |
| dc.subject.en | radioactive decay periods | |
| dc.title.en | Global properties of even-even superheavy nuclei in macroscopic-microscopic models | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevC.72.044310 | |
| dc.subject.hal | Physique [physics]/Physique Nucléaire Théorique [nucl-th] | |
| bordeaux.journal | Physical Review C | |
| bordeaux.page | 044310 | |
| bordeaux.volume | 72 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | in2p3-00025112 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Non spécifiée | |
| hal.origin.link | https://hal.archives-ouvertes.fr//in2p3-00025112v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20C&rft.date=2005&rft.volume=72&rft.spage=044310&rft.epage=044310&rft.eissn=2469-9985&rft.issn=2469-9985&rft.au=BARAN,%20A.&LOJEWSKI,%20Z.&SIEJA,%20K.&KOWAL,%20M.&rft.genre=article |
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