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On the liquid drop model mass formulas and decay of the heaviest nuclei

The coefficients of different macro-microscopic Liquid Drop Model mass formulas have been determined by a least square fitting procedure to 2027 experimental atomic masses. A rms deviation of 0.54 MeV can be reached. The remaining differences come mainly from the determination of the shell and pairi...

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Detalles Bibliográficos
Autores principales: Royer, G, Guilbaud, M, Onillon, A, Zhang, H F
Lenguaje:eng
Publicado: 2010
Materias:
XX
Acceso en línea:http://cds.cern.ch/record/1237923
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author Royer, G
Guilbaud, M
Onillon, A
Zhang, H F
author_facet Royer, G
Guilbaud, M
Onillon, A
Zhang, H F
author_sort Royer, G
collection CERN
description The coefficients of different macro-microscopic Liquid Drop Model mass formulas have been determined by a least square fitting procedure to 2027 experimental atomic masses. A rms deviation of 0.54 MeV can be reached. The remaining differences come mainly from the determination of the shell and pairing energies. Extrapolations are compared to 161 new experimental masses and to 656 mass evaluations. The different fits lead to a surface energy coefficient of around 17-18 MeV. Finally, decay potential barriers are revisited and predictions of decay half-lives of still unknown superheavy elements are given from previously proposed analytical formulas and from extrapolated Q values.
id cern-1237923
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
record_format invenio
spelling cern-12379232019-09-30T06:29:59Zhttp://cds.cern.ch/record/1237923engRoyer, GGuilbaud, MOnillon, AZhang, H FOn the liquid drop model mass formulas and decay of the heaviest nucleiXXThe coefficients of different macro-microscopic Liquid Drop Model mass formulas have been determined by a least square fitting procedure to 2027 experimental atomic masses. A rms deviation of 0.54 MeV can be reached. The remaining differences come mainly from the determination of the shell and pairing energies. Extrapolations are compared to 161 new experimental masses and to 656 mass evaluations. The different fits lead to a surface energy coefficient of around 17-18 MeV. Finally, decay potential barriers are revisited and predictions of decay half-lives of still unknown superheavy elements are given from previously proposed analytical formulas and from extrapolated Q values.oai:cds.cern.ch:12379232010
spellingShingle XX
Royer, G
Guilbaud, M
Onillon, A
Zhang, H F
On the liquid drop model mass formulas and decay of the heaviest nuclei
title On the liquid drop model mass formulas and decay of the heaviest nuclei
title_full On the liquid drop model mass formulas and decay of the heaviest nuclei
title_fullStr On the liquid drop model mass formulas and decay of the heaviest nuclei
title_full_unstemmed On the liquid drop model mass formulas and decay of the heaviest nuclei
title_short On the liquid drop model mass formulas and decay of the heaviest nuclei
title_sort on the liquid drop model mass formulas and decay of the heaviest nuclei
topic XX
url http://cds.cern.ch/record/1237923
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