Empirical Proton-Neutron Interactions and Nuclear Density Functional Theory: Global, Regional, and Local Comparisons

Journal Article · Mon Jan 01 00:00:00 EST 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.98.132502· OSTI ID:931304

Stoitsov, Mario ^[1]; Cakirli, R. B. ^[2]; Casten, R. F. ^[2]; Nazarewicz, Witold ^[1]; Satula, W. ^[3]

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1. ORNL
2. Yale University
3. Warsaw University

Calculations of nuclear masses, using nuclear density functional theory, are presented for even-even nuclei spanning the nuclear chart. The resulting binding energy differences can be interpreted in terms of valence proton-neutron interactions. These are compared globally, regionally, and locally with empirical values. Overall, excellent agreement is obtained. Discrepancies highlight neglected degrees of freedom and can point to improved density functionals.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 931304
• Journal Information: Physical Review Letters, Vol. 98, Issue 13
• Country of Publication: United States
• Language: English