Scales in the fine structure of the magnetic dipole resonance: A wavelet approach to the shell model

Wavelet analysis is applied as a tool for the examination of magnetic dipole (M1) strength distributions in pf-shell nuclei by the extraction of wavelet scales. Results from the analysis of theoretical M1 strength distributions calculated with the KB3G interaction are compared to experimental data f...

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Bibliographic Details
Published in:Physical review. C, Nuclear physics Nuclear physics, 2010-01, Vol.81 (1), Article 014308
Main Authors: Petermann, I., Langanke, K., Martínez-Pinedo, G., Neumann-Cosel, P. von, Nowacki, F., Richter, A.
Format: Article
Language:English
Subjects:
ANGULAR MOMENTUM
DIPOLES
DISTRIBUTION
ELECTRONS
ELEMENTARY PARTICLES
EXTRACTION
FERMIONS
FINE STRUCTURE
INTERACTIONS
LEPTONS
MAGNETIC DIPOLES
MATHEMATICAL MODELS
MULTIPOLES
NUCLEAR MODELS
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEI
PARTICLE PROPERTIES
RESONANCE
SEPARATION PROCESSES
SHELL MODELS
SPIN
STABILITY
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Summary:Wavelet analysis is applied as a tool for the examination of magnetic dipole (M1) strength distributions in pf-shell nuclei by the extraction of wavelet scales. Results from the analysis of theoretical M1 strength distributions calculated with the KB3G interaction are compared to experimental data from (e,e{sup '}) experiments and good agreement of the deduced wavelet scales is observed. This provides further insight into the nature of the scales from the model results. The influence of the number of Lanczos iterations on the development and stability of scales and the role of the model space in terms of the truncation level are studied. Moreover, differences in the scales of spin and orbital parts of the M1 strength are investigated, as is the use of different effective interactions (KB3G, GXPF1, and FPD6).
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.81.014308