Spin Excitations in Nuclei

原子核中的自旋激发

• 批准号: 08044085
• 负责人: EJIRI Hiroyasu
• 金额: $ 3.33万
• 依托单位: Research Center for Nuclear Physics (RCNP), Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08044085/
• 关键词: Sun; Neutrino; Gamow-Teller Resonance; Spin Dipole Resonance; Giant Resonances; gamma-rays; (^3He, t) reactions; Silicon Detectors; スピン・ダイボール共鳴; シリコン・ポール検出器; スピンアイソスピン共鳴; 陽子崩壊; 中性子崩壊; ガンマ線崩壊; 水素標的; 原子核のミクロ構造

We studied the techinical problems to measure proton and neutrom decays followtng the (^3He, t) reactions at 450 MeV.The data taking system was greatly inproved. The coincidence technique using multe silicon- and neutron- detectors has been developed for the neutron and proton decays in coincidence with the focal plane detector system of the spectrometer "Grand Raiden". The following subjects were studied in this fiscal year ;1.Nuclear spin giant resonances via charge exchange reactions.2.Particle decays from the mirror ^<12>N and ^<12>B nuclei.3.Solar neutrinos and ^<176>Yb(^3He, t) reaction.4.gamma-ray production mechanism in proton-proton collision.5.Neutrino absorption cross section of ^<71>Ga6.Nuclear Structure of mirror sysmetry nuclei via the (^3He, t) and (t, ^3He) reactions.7.Neutrinos and Nuclear spin responses.As the next subject, we prepare some new experiments at KVI and RCNP.Sophisticated theoretical calculations in understanding the proton and neutron decays from the spin excitations in nuclei have started.

我们研究了测量质子和中性衰减的技术问题，跟随（^3he，t）在450 MEV处的反应。使用Multe硅和中子探测器的巧合技术是为中子和质子腐烂而开发的，与光谱仪“ Grand Raiden”的焦平面检测器系统一致。在本财政年度研究以下受试者； 1.通过电荷交换反应进行的核旋转巨大共振。2。粒子从镜子 ^<12> n和 ^<12> b nuclei.3.3.solar中微子和 ^<176> yb（ ^3he，t）反应。 ^<71>Ga6.Nuclear Structure of mirror sysmetry nuclei via the (^3He, t) and (t, ^3He) reactions.7.Neutrinos and Nuclear spin responses.As the next subject, we prepare some new experiments at KVI and RCNP.Sophisticated theoretical calculations in understanding the proton and neutron decays from the spin excitations in nuclei have started.

项目成果

M.Fujiwara, T.Kinashi, T.Hotta: "Investigation of Quark Nuclear Physics using Laser-Electron Photons" Jap.Soc.for Synchrotoron Radiation Research. 10. 23-35 (1997)

M.Fujiwara、T.Kinashi、T.Hotta：“利用激光电子光子研究夸克核物理”Jap.Soc.for Synchrotoron Radiation Research。

H.Aakimune,H.Ejiri,M.Fujiwara,et al.: "GT Strengths Studied,by (^3He,t)Reaction and Nuclear Matrix Elements for Double Beta Decays" Phys.Lett.B. (1997)

H.Aakimune、H.Ejiri、M.Fujiwara 等人：“通过 (^3He,t) 反应和双 Beta 衰变的核基质元素研究 GT 强度”Phys.Lett.B。

C.Samanta, Y.Sakuragi, M.Tto and M.Fujiwara: "Energy dependence in ^6Li-nucleus interactions at intermediate energies" Jour.Phys.G : Nucl.and Part.23. 1697-1705 (1997)

C.Samanta、Y.Sakuragi、M.Tto 和 M.Fujiwara：“中等能量下^6Li-核相互作用的能量依赖性”Jour.Phys.G：Nucl.and Part.23。

H.Ejiri, K.Ishibashi, H.Akimune, I.Daito, H.Fujimura, M.Fujiwara, T.Inomata, H.Toyokawa, H.Kohri, Y.Arimoto, F.Ihara, Y.Fujita, M.B.Greenfield, M.N.Harakeh, J.Janecke, C.Samanta, M.Yosoi, A.Tamii, S.Nakayama, K.Fushimi and M.Tanaka: "Spin Isospin Response

H.Ejiri、K.Ishibashi、H.Akimune、I.Daito、H.Fujimura、M.Fujiwara、T.Inomata、H.Toyokawa、H.Kohri、Y.Arimoto、F.Ihara、Y.Fujita、M.B.Greenfield

I.Daito, M.Fujiwara, 他: "Gamow-Teller strength from (t,^3He) charge-exchange reactions for neutron halo nuclei" Phys.Lett.B. (1998)

I.Daito、M.Fujiwara 等人：“中子晕核的 (t,^3He) 电荷交换反应的 Gamow-Teller 强度”Phys.Lett.B (1998)