Study of the Gamow Teller strength in /sup 40/ /sup 42/ /sup 44/ /sup 48/Ca from the (p,n) reaction at 119 MeV
The (p,n) reaction at 119.3 MeV has been employed to measure the spin transfer strength in /sup 40/ /sup 42/ /sup 44/ and /sup 48/Ca. The experiment was carried out at the Indiana University Cyclotron Facility using the neutron time of flight apparatus and time compensated scintillation detectors at a target-to-detector distance of 131.5 meters. Analyses of the data by several different methods indicate that a significant amount of 1/sup +/ strength is contained in what is conventionally taken as the backgound in neutron energy spectra. This finding explains at best partially the apparent quenching of the spin dependent operator V/sub sigmatau/ when the data were analyzed ignoring such a background. An earlier observation that the 16.8 MeV state in /sup 48/Sc is wider than the parent state in /sup 48/Ca at an excitation of 2.52 MeV is confirmed by the present data. The 2.73 MeV state in /sup 48/Sc is found to have an angular distribution corresponding to L = 0.
- Research Organization:
- Michigan State Univ., East Lansing (USA)
- OSTI ID:
- 6129000
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CALCIUM 40 TARGET
PROTON REACTIONS
CALCIUM 42 TARGET
CALCIUM 44 TARGET
CALCIUM 48 TARGET
CHARGE-EXCHANGE REACTIONS
GAMOW-TELLER RULES
MEV RANGE 100-1000
NEUTRON SPECTRA
NEUTRONS
SCANDIUM 40
SCANDIUM 42
SCANDIUM 44
SCANDIUM 48
BARYON REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
DAYS LIVING RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRON REACTIONS
HADRONS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MEV RANGE
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
ODD-ODD NUCLEI
RADIOISOTOPES
SCANDIUM ISOTOPES
SECONDS LIVING RADIOISOTOPES
SPECTRA
TARGETS
651525* - Nuclear Properties & Reactions
A=39-58
Experimental- Nuclear Reactions & Scattering- (-1987)