Gamow-Teller beta decay and isospin impurity in nuclei near the proton drip line

Journal Article · Wed Sep 01 00:00:00 EDT 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.48.R960· OSTI ID:6276403

Hamamoto, I; Sagawa, H ^[1]

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1. Department of Physics, Faculty of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113 (Japan) Department of Mathematical Physics, Lund Institute of Technology, Lund (Sweden) Center for Mathematical Sciences, University of Aizu, Aizu-Wakamatsu, Fukushima 965 (Japan)

It is shown that superallowed'' Gamow-Teller (GT) beta decays are possible for [ital N]=[ital Z] nuclei heavier than [sub 28][sup 56]Ni[sub 28], performing Hartree-Fock plus random phase approximation (Tamm-Dancoff approximation) calculations. Since Fermi-type beta decays are forbidden in [ital N]=[ital Z] even-even nuclei, it is pointed out that the main decay mode of the nuclei such as [sup 1][sub 50][sup 00]Sn[sub 50] may be superallowed'' GT beta decay, which is a beta decay to the GT giant resonance state. The amplitude of isospin [ital T]=1 admixed to the [ital T]=0 ground state in [ital N]=[ital Z] nuclei is also calculated and discussed.

• OSTI ID: 6276403
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 48:3; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663210* -- Ground-State Radioactivity-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CALCULATION METHODS
DECAY
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
EVEN-EVEN NUCLEI
GAMOW-TELLER RULES
GROUND STATES
HARTREE-FOCK METHOD
INTERMEDIATE MASS NUCLEI
ISOSPIN
ISOTOPES
NUCLEAR DECAY
NUCLEI
PARTICLE PROPERTIES
RADIOISOTOPES
RANDOM PHASE APPROXIMATION
TAMM-DANCOFF METHOD
TIN 100
TIN ISOTOPES