Analog of the giant dipole resonance in {sup 4}He
Journal Article
·
· Physical Review. C, Nuclear Physics
- Department of Physics, University of Tokushima, Tokushima 770-8502 (Japan)
- Department of Physics, Konan University, Kobe 658-8501 (Japan)
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047 (Japan)
- Department of Physics, Kyushu University, Fukuoka 812-8581 (Japan)
- Kobe Tokiwa College, Kobe 654-0838 (Japan)
We studied the giant dipole resonance (GDR) in {sup 4}He by observing its analog via the {sup 4}He({sup 7}Li,{sup 7}Be) reaction at an incident energy of 455 MeV and at forward scattering angles. The spin-nonflip ({delta}S=0) spectrum was deduced by measuring the 0.43-MeV {sup 7}Be {gamma}-ray in coincidence with the scattered {sup 7}Be. The total cross section of photodisintegration to the GDR in {sup 4}He was derived from the {delta}S=0 and {delta}L=1 spectrum. The result agrees well with the previous total photodisintegration data in which the GDR has a pronounced peak at E{sub {gamma}}{approx}27 MeV.
- OSTI ID:
- 21061928
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 76; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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