E2 giant resonances and an M1 component in the photofission of /sup 236/U
Journal Article
·
· Phys. Rev., C; (United States)
Electrofission and photofission yields and electrofission-fragment angular distributions for /sup 236/U have been measured with fission-track detectors for incident electron energies from 5.5 to 33.0 MeV. Analysis of these data with the use of virtual-photon spectra calculated in distorted-wave Born approximation, combined with the known photofission cross section, results in the simultaneous determination for this nucleus of (a) a giant isoscalar E2 resonance located at 10.8 +- 0.4 MeV, having a width of 6 +- 1 MeV, and exhausting approx.70% of the isoscalar energy-weighted sum rule, and (b) a small M1 component located at 5.8 +- 0.2 MeV whose strength is <2% of that of the giant isoscalar E2 resonance. No evidence is seen for a giant isovector E2 resonance between 22 and 30 MeV.
- Research Organization:
- Instituto de Fisica, Universidade de Sao Paulo, Sao Paulo, Brazil
- OSTI ID:
- 7184493
- Journal Information:
- Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 22:5; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
652023 -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Energy Levels & Transitions-- (-1987)
652026* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
DISTRIBUTION
DWBA
E2-TRANSITIONS
ELECTROFISSION
ELECTRON REACTIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EQUATIONS
FISSION
FISSION FRAGMENTS
GIANT RESONANCE
INELASTIC SCATTERING
LEPTON REACTIONS
M1-TRANSITIONS
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
MULTIPOLE TRANSITIONS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
PHOTOFISSION
PHOTONUCLEAR REACTIONS
QUADRUPOLE MOMENTS
RESONANCE
SCATTERING
SUM RULES
TARGETS
URANIUM 236 TARGET
A=220 & above
Experimental-- Energy Levels & Transitions-- (-1987)
652026* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
DISTRIBUTION
DWBA
E2-TRANSITIONS
ELECTROFISSION
ELECTRON REACTIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EQUATIONS
FISSION
FISSION FRAGMENTS
GIANT RESONANCE
INELASTIC SCATTERING
LEPTON REACTIONS
M1-TRANSITIONS
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
MULTIPOLE TRANSITIONS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
PHOTOFISSION
PHOTONUCLEAR REACTIONS
QUADRUPOLE MOMENTS
RESONANCE
SCATTERING
SUM RULES
TARGETS
URANIUM 236 TARGET