Evidence for M1 strength in the /sup 3/H(p-arrow-right,. gamma. )/sup 4/He reaction
Journal Article
·
· Phys. Rev. C; (United States)
Angular distributions of cross sections and analyzing powers were measured for the /sup 3/H(p-arrow-right,..gamma..)/sup 4/He reaction at incident proton energies of 2.0, 5.0, and 9.0 MeV. The 90/sup 0/ analyzing power was measured at 11 energies between 0.8 and 9.0 MeV. A transition matrix element analysis indicated that the inclusion of M1 strength gave better fits and eliminated the anomalously large /sup 3/D/sub 2/ (E2) strength reported in earlier work. An E1-plus-E2 direct capture calculation was performed. It is shown that this calculation can be brought into agreement with the data if an M1 strength comparable to that found in the T-matrix element analysis (0.5--1.0% of the total capture cross section) is added.
- Research Organization:
- Duke University and Triangle Universities Nuclear Laboratory, Duke Station, Durham, North Carolina 27706
- OSTI ID:
- 6435564
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 39:2; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651220* -- Nuclear Properties & Reactions
A=1-5
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
ANGULAR DISTRIBUTION
BARYON REACTIONS
BEAMS
CAPTURE
CHARGED-PARTICLE REACTIONS
DATA
DISTRIBUTION
E1-TRANSITIONS
E2-TRANSITIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
HADRON REACTIONS
HELIUM 4
HELIUM ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
M1-TRANSITIONS
MATRICES
MATRIX ELEMENTS
MEV RANGE
MEV RANGE 01-10
MULTIPOLE TRANSITIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
POLARIZED BEAMS
PROTON REACTIONS
S MATRIX
STABLE ISOTOPES
TARGETS
TRITIUM TARGET
A=1-5
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
ANGULAR DISTRIBUTION
BARYON REACTIONS
BEAMS
CAPTURE
CHARGED-PARTICLE REACTIONS
DATA
DISTRIBUTION
E1-TRANSITIONS
E2-TRANSITIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
HADRON REACTIONS
HELIUM 4
HELIUM ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
M1-TRANSITIONS
MATRICES
MATRIX ELEMENTS
MEV RANGE
MEV RANGE 01-10
MULTIPOLE TRANSITIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
POLARIZED BEAMS
PROTON REACTIONS
S MATRIX
STABLE ISOTOPES
TARGETS
TRITIUM TARGET