An upper limit to ground state energy fluctuations in nuclear masses
Por:
Hirsch J.G., Velázquez V., Frank A., Barea J., Van Isacker P., Zuker A.P.
Publicada:
1 ene 2007
Categoría:
Physics and Astronomy (miscellaneous)
Resumen:
Shell model calculations are employed to estimate un upper limit of statistical fluctuations in the nuclear ground state energies. In order to mimic the presence of quantum chaos associated with neutron resonances at energies between 6 to 10 MeV, calculations include random interactions in the upper shells. The upper bound for the energy fluctuations at mid-shell is shown to have the form ?(A) ? 20A-1.34 MeV. This estimate is consistent with the mass errors found in large shell model calculations along the N=126 line, and with local mass error estimated using the Garvey-Kelson relations, all being smaller than 100 keV. © 2007 American Institute of Physics.
Filiaciones:
Hirsch J.G.:
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, AP 70-543, 04510 México DF, Mexico
Velázquez V.:
Departamento de Física, Facultad de Ciencias, Universidad Nacional Autónoma de México, AP 70-348, 04511 México DF, Mexico
Frank A.:
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, AP 70-543, 04510 México DF, Mexico
Barea J.:
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, AP 70-543, 04510 México DF, Mexico
Van Isacker P.:
GANIL, BP 55027, F-14076 Caen Cedex 5, France
Zuker A.P.:
IReS, Ba27-CNRS, Universitè Louis Pasteur, BP 28, F-67037 Strasbourg Cedex 2, France
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