Isospin splitting in double isovector excitations

Journal Article · Tue Oct 01 04:00:00 EDT 1991 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.44.1481· OSTI ID:5218158

O'Donnell, J M ^[1]; Fortune, H T ^[2]

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1. University of Pennsylvania, Philadelphia, Pennsylvania (USA) Los Alamos National Laboratory, Los Alamos, New Mexico (USA)
2. University of Pennsylvania, Philadelphia, Pennsylvania (USA)

Expressions are derived for the relative locations of the different isospin components of double isovector excitations. The splittings between the isospin components are found to be similar in magnitude to the isospin splittings in single excitations. Formulas are given for the relative strengths for exciting the different isospin components of the double excitations. Energy-weighted centroids are calculated in terms of isovector and isotensor energies. Examples are given, using available data for the double giant-dipole resonance. The Lane potential is found to be similar in magnitude to that for the single giant-dipole resonance.

• OSTI ID: 5218158
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 44:4; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
GIANT RESONANCE
HADRON REACTIONS
INELASTIC SCATTERING
ISOSPIN
ISOVECTORS
MESON REACTIONS
NUCLEAR REACTIONS
PARTICLE PROPERTIES
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
RESONANCE
SCATTERING
TENSORS
VECTORS