Determination of Strength of Isoscalar Pairing Interaction by a Mathematical Identity in QRPA

2019/01/21 by J. Terasaki, Terasaki, J.
Physics and Astronomy · #FOS: Physical sciences #Neutrino Physics Research #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Nuclear physics research studies #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.1901.06846

openalex publication_date 2019/01/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

I propose a new method to determine the strength of the isoscalar proton-neutron pairing interaction by a mathematical identity derived in the quasiparticle random-phase approximation. This method is applied for a few nuclei possibly having the neutrinoless double-β decay. Reduced half-life, the theoretical quantity necessary for determining the effective neutrino mass, is calculated for ⁴⁸Ca.

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