Nuclear energy density optimization

被引：456

作者：

Kortelainen, M. ^{[1
,2
]}

Lesinski, T. ^{[1
,2
]}

More, J. ^{[3
]}

Nazarewicz, W. ^{[1
,2
,4
]}

Sarich, J. ^{[3
]}

Schunck, N. ^{[1
,2
]}

Stoitsov, M. V. ^{[1
,2
,5
]}

Wild, S. ^{[3
]}

机构：

[1] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[2] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA

[3] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA

[4] Warsaw Univ, Inst Theoret Phys, PL-00681 Warsaw, Poland

[5] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

来源：

PHYSICAL REVIEW C | 2010年 / 82卷 / 02期

关键词：

HARMONIC-OSCILLATOR BASIS; GROUND-STATE PROPERTIES; HARTREE-FOCK EQUATIONS; ATOMIC MASS EVALUATION; SKYRME INTERACTION; EFFECTIVE FORCES; NEUTRON-RICH; PARAMETRIZATION; MATTER;

D O I：

10.1103/PhysRevC.82.024313

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We carry out state-of-the-art optimization of a nuclear energy density of Skyrme type in the framework of the Hartree-Fock-Bogoliubov theory. The particle-hole and particle-particle channels are optimized simultaneously, and the experimental data set includes both spherical and deformed nuclei. The new model-based, derivative-free optimization algorithm used in this work has been found to be significantly better than standard optimization methods in terms of reliability, speed, accuracy, and precision. The resulting parameter set UNEDF0 results in good agreement with experimental masses, radii, and deformations and seems to be free of finite-size instabilities. An estimate of the reliability of the obtained parameterization is given, based on standard statistical methods. We discuss new physics insights offered by the advanced covariance analysis.

引用

页数：18

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