2. nu. double beta decay and self-consistent self-energies

Journal Article · Mon Sep 28 04:00:00 EDT 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.1900· OSTI ID:7029722

Stout, D B; Kuo, T T.S. ^[1]

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1. Department of Physics, State University of New York at Stony Brook, Stony Brook, New York 11794-3800 (United States)

We have performed quasiparticle-random-phase-approximation (QRPA) calculations of the {nu}{nu} transition matrix for {sup 76}Ge, {sup 82}Se, and {sup 100}Mo, using effective interactions derived from the Paris and the Bonn {ital NN} potentials. Unlike earlier QRPA calculations where the self-energy corrections to the single-particle spectra were suppressed, we have retained these corrections as given by our interactions. In this way our calculations are able to avoid the commonly encountered difficulty of QRPA instability near {ital g}{sub pp}=1. The {ital M}{sup 2{nu}} matrix elements of {sup 76}Ge, {sup 82}Se, and {sup 100}Mo given by our calculation, with no adjustable parameters, are in reasonably good agreement with recent direct counter experiments.

• DOE Contract Number: FG02-88ER40388
• OSTI ID: 7029722
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:13; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
BARYON-BARYON INTERACTIONS
BCS THEORY
BETA DECAY
BETA-MINUS DECAY
CALCULATION METHODS
DECAY
DOUBLE BETA DECAY
ENERGY
EVEN-EVEN NUCLEI
GERMANIUM 76
GERMANIUM ISOTOPES
HADRON-HADRON INTERACTIONS
INTERACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MOLYBDENUM 100
MOLYBDENUM ISOTOPES
NUCLEAR DECAY
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
RANDOM PHASE APPROXIMATION
SELENIUM 82
SELENIUM ISOTOPES
SELF-ENERGY
STABLE ISOTOPES
TRANSITION AMPLITUDES