Many-body correlations of QRPA in nuclear matrix elements of double-beta decay

Journal Article · Wed Oct 28 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4934914· OSTI ID:22492677

Terasaki, J. ^[1]

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1. Division of Physics and Center for Computational Sciences, University of Tsukuba, Tsukuba 305-8577 (Japan)

We present two new ideas on the quasiparticle random-phase approximation (QRPA) approach for calculating nuclear matrix elements of double-beta decay. First, it is necessary to calculate overlaps of the QRPA states obtained on the basis of the ground states of different nuclei. We calculate this overlap using quasiboson vacua as the QRPA ground states. Second, we show that two-particle transfer paths are possible to use for the calculation under the closure approximation. A calculation is shown for {sup 150}Nd→{sup 150}Sm using these two new ideas, and their implication is discussed.

• OSTI ID: 22492677
• Journal Information: AIP Conference Proceedings, Vol. 1686, Issue 1; Conference: MEDEX'15: Workshop on calculation of double-beta-decay matrix elements, Prague (Czech Republic), 9-12 Jun 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CORRELATIONS
DOUBLE BETA DECAY
GROUND STATES
MANY-BODY PROBLEM
NEODYMIUM 150
NUCLEAR MATRIX
PARTICLES
RANDOM PHASE APPROXIMATION
SAMARIUM 150