Electroexcitation of M1 and M2 resonances in spherical nuclei

Journal Article · Thu Oct 01 00:00:00 EDT 1981 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5602617

Vdovin, A I; Ponomarev, V Y; Shilov, V M

Current transition densities have been calculated for one-phonon 1/sup +/ and 2/sup -/ states of spherical nuclei, using the quasiparticle-phonon nuclear model. It was found that the current transition densities of the 1/sup +/ states are of surface type, and those of the 2/sup -/ states are of volume type. DWBA calculations of slow-electron large-angle-scattering differential cross sections using these current transition densities show that the electroexcitation probability for the 1/sup +/ levels decreases sharply as compared with that for the 2/sup -/ levels as the momentum transfer and the target-nucleus mass number increase. This may account for the lack of success in searches for M1 resonances in intermediate and heavy nuclei.

• Research Organization: Joint Institute for Nuclear Research
• OSTI ID: 5602617
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 34:4; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DWBA
ELECTRON REACTIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
GIANT RESONANCE
INELASTIC SCATTERING
LEPTON REACTIONS
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
NUCLEAR MODELS
NUCLEAR REACTIONS
QUASI PARTICLES
RESONANCE
SCATTERING
SPHERICAL MODEL