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Title: Further improvements on a global nuclear mass model

Abstract

The semi-empirical macroscopic-microscopic mass formula is further improved by considering some residual corrections. The rms deviation from 2149 known nuclear masses is significantly reduced to 336 keV, even lower than that achieved with the best of the Duflo-Zuker models. The {alpha}-decay energies of super-heavy nuclei, the Garvey-Kelson relations, and the isobaric multiplet mass equation (IMME) can be reproduced remarkably well with the model, and the predictive power of the mass model is good. With a systematic study of 17 global nuclear mass models, we find that the quadratic form of the IMME is closely related to the accuracy of nuclear mass calculations when the Garvey-Kelson relations are reproduced reasonably well. Fulfilling both the IMME and the Garvey-Kelson relations seem to be two necessary conditions for improving the quality of the model prediction. Furthermore, the {alpha}-decay energies of super-heavy nuclei should be used as an additional constraint on global nuclear mass models.

Authors:
; ;  [1];  [2]
  1. Department of Physics, Guangxi Normal University, Guilin 541004 (China)
  2. China Institute of Atomic Energy, Beijing 102413 (China)
Publication Date:
OSTI Identifier:
21596579
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 84; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevC.84.014333; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ACCURACY; ALPHA DECAY; CORRECTIONS; EQUATIONS; FORECASTING; HEAVY NUCLEI; KEV RANGE 100-1000; MASS; MASS FORMULAE; SIMULATION; TRANSACTINIDE ELEMENTS; DECAY; ELEMENTS; ENERGY RANGE; KEV RANGE; NUCLEAR DECAY; NUCLEI; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS

Citation Formats

Liu Min, Wang Ning, Deng Yangge, and Wu Xizhen. Further improvements on a global nuclear mass model. United States: N. p., 2011. Web. doi:10.1103/PHYSREVC.84.014333.
Liu Min, Wang Ning, Deng Yangge, & Wu Xizhen. Further improvements on a global nuclear mass model. United States. doi:10.1103/PHYSREVC.84.014333.
Liu Min, Wang Ning, Deng Yangge, and Wu Xizhen. Fri . "Further improvements on a global nuclear mass model". United States. doi:10.1103/PHYSREVC.84.014333.
@article{osti_21596579,
title = {Further improvements on a global nuclear mass model},
author = {Liu Min and Wang Ning and Deng Yangge and Wu Xizhen},
abstractNote = {The semi-empirical macroscopic-microscopic mass formula is further improved by considering some residual corrections. The rms deviation from 2149 known nuclear masses is significantly reduced to 336 keV, even lower than that achieved with the best of the Duflo-Zuker models. The {alpha}-decay energies of super-heavy nuclei, the Garvey-Kelson relations, and the isobaric multiplet mass equation (IMME) can be reproduced remarkably well with the model, and the predictive power of the mass model is good. With a systematic study of 17 global nuclear mass models, we find that the quadratic form of the IMME is closely related to the accuracy of nuclear mass calculations when the Garvey-Kelson relations are reproduced reasonably well. Fulfilling both the IMME and the Garvey-Kelson relations seem to be two necessary conditions for improving the quality of the model prediction. Furthermore, the {alpha}-decay energies of super-heavy nuclei should be used as an additional constraint on global nuclear mass models.},
doi = {10.1103/PHYSREVC.84.014333},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 1,
volume = 84,
place = {United States},
year = {2011},
month = {7}
}