Levels of isotopes /sup 233/ /sup 235/ /sup 237/Pa and /sup 229/ /sup 231/Ac studied by the (t,. cap alpha. ) reaction. [15 MeV; cross sections, DWBA]

Journal Article · Wed Jun 01 04:00:00 EDT 1977 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.15.2019· OSTI ID:7256186

Thompson, R C; Wilcke, W; Huizenga, J R; Hensley, W K; Perry, D G

The /sup 234/U(t,..cap alpha..)/sup 233/Pa, /sup 236/U(t,..cap alpha..)/sup 235/Pa, /sup 238/U(t,..cap alpha..)/sup 237/Pa, /sup 230/Th(t,..cap alpha..)/sup 229/Ac, and /sup 232/Th(t,..cap alpha..)/sup 231/Ac reactions were studied with a 15-MeV triton beam. The reaction results are interpreted in terms of a distorted-wave--Born-approximation analysis. Theoretical cross sections, calculated in the framework of the Nilsson model with pairing and Coriolis interactions included, are compared with experimental values. The following Nilsson proton configurations are identified in all of the residual nuclei: 1/2/sup +/(400),3/2/sup +/(402), 3/2/sup +/(651), 1/2/sup -/(530). The 1/2/sup -/(541) and 9/2/sup -/(514) configurations are tentatively assigned. Due to the increase in deformation with neutron number, the ground state configuration of the Pa isotopes changes from 3/2/sup -/(530) to 1/2/sup +/(400) as A increases.

• Research Organization: Nuclear Structure Research Laboratory, University of Rochester, Rochester, New York 14627
• OSTI ID: 7256186
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 15:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

652023 -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Energy Levels & Transitions-- (-1987)
652025* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIUM 229
ACTINIUM 231
ACTINIUM ISOTOPES
ALPHA PARTICLES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BORN APPROXIMATION
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CORIOLIS FORCE
CROSS SECTIONS
DAYS LIVING RADIOISOTOPES
DIRECT REACTIONS
DWBA
ENERGY LEVELS
ENERGY RANGE
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INTERACTIONS
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NILSSON-MOTTELSON MODEL
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEAR STRUCTURE
NUCLEI
ODD-EVEN NUCLEI
ONE-NUCLEON TRANSFER REACTIONS
PAIRING INTERACTIONS
PICKUP REACTIONS
PROTACTINIUM 233
PROTACTINIUM 235
PROTACTINIUM 237
PROTACTINIUM ISOTOPES
RADIOISOTOPES
TARGETS
THORIUM 230 TARGET
THORIUM 232 TARGET
TRANSFER REACTIONS
TRITON REACTIONS
URANIUM 234 TARGET
URANIUM 236 TARGET
URANIUM 238 TARGET