Application of anharmonic vibrational models for energy spectrum studies of superheavy nuclei
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| Format: | Artículo científico |
| Language: | en |
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Sociedade Brasileira de Física
2004
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| _version_ | 1876474686308614144 |
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| author | R. Kuramoto |
| author_facet | R. Kuramoto |
| contents | Application of anharmonic vibrational models for energy spectrum studies of superheavy nuclei R. Kuramoto C. R. Appoloni Física, Astronomía y Matemáticas The recent resumption of the synthesis of new superheavy nuclei has provided relevant results for nuclearphysics and chemistry. These nuclei provide experimental confirmation of theoretical calculations that predictthe existence of two islands of stability, one with maximum stability in Z=114 and N=184 and the other inZ=120 or Z=126 and N=184 or N=228. Through cold fusion, recently synthesized nuclei with Z=114, 116 and118 have confirmed the theoretical predictions, providing a possibility of reaching the maximum of these islandsof stability. Because of the low production rate and the extremely short half-life of these nuclei, it has not yetbeen possible to determine their energy spectra. However, it has been theoretically predicted that the nucleishould acquire a spherical form in these islands of stability, thus supplying characteristic vibrational energyspectra. The predictions also indicate the existence of deformed superheavy nuclei in the region between theislands, which can possess rotational energy spectra. In this work, the hydrodynamic equation of energy wascorrected by inserting terms referring to coulombian effects, shell closure and nuclear deformation, enabling usto predict the energies of the first excited state for superheavy nuclei of quadrupole deformation, the quadrupolephonon state and an octupole phonon for spherical superheavy nuclei. Four anharmonic vibrational models werethen used to describe higher energy states of the nuclei in question. The energy spectra of the 266104, 268106,270108, 274110, 278112, 298114, 304120, 348120, 354126 nuclei and their closest neighbors were determined. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434229 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2A Vol.34 |
| format | Artículo científico |
| id | redalyc_46434229 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Application of anharmonic vibrational models for energy spectrum studies of superheavy nuclei R. Kuramoto Física, Astronomía y Matemáticas Application of anharmonic vibrational models for energy spectrum studies of superheavy nuclei R. Kuramoto C. R. Appoloni Física, Astronomía y Matemáticas The recent resumption of the synthesis of new superheavy nuclei has provided relevant results for nuclearphysics and chemistry. These nuclei provide experimental confirmation of theoretical calculations that predictthe existence of two islands of stability, one with maximum stability in Z=114 and N=184 and the other inZ=120 or Z=126 and N=184 or N=228. Through cold fusion, recently synthesized nuclei with Z=114, 116 and118 have confirmed the theoretical predictions, providing a possibility of reaching the maximum of these islandsof stability. Because of the low production rate and the extremely short half-life of these nuclei, it has not yetbeen possible to determine their energy spectra. However, it has been theoretically predicted that the nucleishould acquire a spherical form in these islands of stability, thus supplying characteristic vibrational energyspectra. The predictions also indicate the existence of deformed superheavy nuclei in the region between theislands, which can possess rotational energy spectra. In this work, the hydrodynamic equation of energy wascorrected by inserting terms referring to coulombian effects, shell closure and nuclear deformation, enabling usto predict the energies of the first excited state for superheavy nuclei of quadrupole deformation, the quadrupolephonon state and an octupole phonon for spherical superheavy nuclei. Four anharmonic vibrational models werethen used to describe higher energy states of the nuclei in question. The energy spectra of the 266104, 268106,270108, 274110, 278112, 298114, 304120, 348120, 354126 nuclei and their closest neighbors were determined. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434229 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2A Vol.34 |
| title | Application of anharmonic vibrational models for energy spectrum studies of superheavy nuclei |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46434229 |