1996 Fiscal Year Final Research Report Summary
Excitations of Isovector Monopole Resonance in Nuclei
| Project/Area Number |
07640426
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
素粒子・核・宇宙線
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| Research Institution | Kobe Tokiwa Jr. College |
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Principal Investigator |
TANAKA Masayoshi Kobe Tokiwa Jr. College, Dept. of Clinical Technology, Professor, 衛生技術科, 教授 (70071397)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAYAMA Shintaro Tokushima University, Facul. of Arts and Sciences, Professor, 総合科学部, 教授 (70116846)
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| Project Period (FY) |
1995 – 1996
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| Keywords | Isovector Monopole / Giant Dipole Resonance / Spin Dipole Resonance / One particle one hole / Statistical model / Neutron decay / GSO counter / Grand Raiden |
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| Research Abstract |
We searched for the Isovector giant resonance by means of a tripple coincidence method among decay neutrons, 430 keV gamma-rays from the first excited state of ^7Be and scattered ^7Be following the (^7Li, ^7Be) reaction on ^<12>C using a 65 AMev ^7Li beam from a Ring cyclotron at RCNP.Osaka University. For detection of 7Be scattered at 0 degrees the magnetic spectrograph, "Grand-Raiden" was used. For detection of 430 keV gamma-rays and decay neutrons a GS0-counter array composed of 22 counter segments and liquid neutron counter arrays composed of 48 segments were used. It was found that we could succeeded in observing neutron decays from the isovector non spin-flip (DELTAS=0) states separately from the isovector spin-flip (DELTAS=1) states for the first time. This will hopefully provide a delightfull direction toward the discovery of the Isovector Giant Monopole Resonance.
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Research Products
(3 results)
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[Publications] S.Nakayama, K.Fushimi, H.Kohri, H.Akimune, I.Daito, H.Fujimura, Y.Fujita, M.Fujiwara, T.Inomata, K.Ishibashi, T.Iwawaki, N.Koori, K.Takahisa, A.Tamii, M.Tanaka, H.Toyokawa, and T.Yamagata: ""GSO-detector system, 'NYMPHS' for (^7Li, ^7Be-gamma) Reaction at Intermediate Energies'" Nuclear Instruments and Methods, submitted to Nucl. Instr. and Meth.
Description
「研究成果報告書概要(欧文)」より
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[Publications] S.Nakayama, K.Fushimi, H.Kohri, H.Akimune, I.Daito, H.Fujimura, Y.Fujita, M.Fujiwara, T.Inomata, K.Ishibashi, T.Iwawaki, N.Koori, K.Takahisa, A.Tamii, M.Tanaka, H.Toyokawa, and T.Yamagata: ""The (^7Li, ^7Be-gamma) Reaction as a Spin-Probe for Isovector Excitations'" Nuclear Instruments and Methods, 1997, to be published in Nucl. Instr. and Meth as the Proc. of the Int. Workshop on Polarized 3He Beams and Gas Targets and Their Application, Kobe, Japan 1997, ed. by M.Tanaka.
Description
「研究成果報告書概要(欧文)」より
