Pairing Nambu-Goldstone Modes within Nuclear Density Functional Theory

Hinohara, Nobuo; Nazarewicz, Witold

doi:10.1103/physrevlett.116.152502

Title: Pairing Nambu-Goldstone Modes within Nuclear Density Functional Theory

Journal Article · Fri Apr 01 00:00:00 EDT 2016 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.116.152502· OSTI ID:1565507

Hinohara, Nobuo; Nazarewicz, Witold

We show that the Nambu-Goldstone formalism of the broken gauge symmetry in the presence of the T=1 pairing condensate offers a quantitative description of the binding-energy differences of open-shell superfluid nuclei. We conclude that the pairing-rotational moments of inertia are excellent pairing indicators, which are free from ambiguities attributed to odd-mass systems. We offer a new, unified interpretation of the binding-energy differences traditionally viewed in the shell model picture as signatures of the valence nucleon properties. We present the first systematic analysis of the off-diagonal pairing-rotational moments of inertia and demonstrate the mixing of the neutron and proton pairing-rotational modes in the ground states of even-even nuclei. Finally, we discuss the importance of mass measurements of neutron-rich nuclei for constraining the pairing energy density functional.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)

Sponsoring Organization:: USDOE Office of Science (SC)

DOE Contract Number:: SC0008511; SC0013365

OSTI ID:: 1565507

Journal Information:: Physical Review Letters, Vol. 116, Issue 15; ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

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