Title: Electric dipole transitions near the Z=50 and N=82 closed shells
Authors: Heyde, K ×
Decoster, Christiaan #
Issue Date: 1997
Publisher: Elsevier science bv
Series Title: Physics letters b vol:393 issue:1-2 pages:7-12
Abstract: We point out that E1 transition rates at the Z = 50 (and N = 82) closed shells, describing the decay of the two-phonon quadrupole-octupole \2(+) circle times 3(-); 1(-)) states, of the correct magnitude can be obtained. The mechanism of including 1p-1h admixtures, at the tail of the giant dipole resonance (GDR), into the otherwise collective two-phonon states is at the origin of the observed E1 rates. At the same time, we show how a two-body E1 operator can be constructed that directly deexcites the two-phonon 1(-) state. We give an estimate of the effective electric charge needed in this two-body E1 operator.
ISSN: 0370-2693
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Academic Centre for Nursing and Midwifery
× corresponding author
# (joint) last author

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