M1 transitions in spherical nuclei. [Theory of finie Fermi systems]

Journal Article · Fri Oct 01 00:00:00 EDT 1976 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:7223938

Tkachev, V N; Borzov, I N; Kamerdzhiev, S P

The properties of the M1 resonance in /sup 88/Sr, /sup 90/Zr, /sup 140/Ce, and isotopes of Sn and Pb (energies of 1/sup +/ levels, values of B (M1, 1/sup +/..-->..0/sup +/), ..gamma..-absorption cross sections) are calculated in the theory of finite Fermi systems. The effect of pairing on the M1 resonance is analyzed. Comparison with analogous calculations for E1 and E2 resonances shows that the ..gamma..-absorption cross sections with excitation of individual 1/sup -/, 2/sup +/, and 1/sup +/ levels are comparable with one another. Also calculated are the probabilities of low-energy M1 transitions and magnetic moments of the ground states and excited states for odd nuclei near /sup 208/Pb. With the exception of the probabilities of forbidden M1 transitions, satisfactory agreement with available experiment is obtained.

• Research Organization: Physics and Power Engineering Institute
• OSTI ID: 7223938
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 24:4; ISSN SJNCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
CERIUM 140
CERIUM ISOTOPES
DIPOLES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
FERMI GAS MODEL
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD ISOTOPES
MAGNETIC DIPOLES
MATHEMATICAL MODELS
MULTIPOLES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
PHOTONUCLEAR REACTIONS
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SPHERICAL MODEL
STABLE ISOTOPES
STRONTIUM 88
STRONTIUM ISOTOPES
TIN ISOTOPES
ZIRCONIUM 90
ZIRCONIUM ISOTOPES