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| 1 | High-Spin States in the N = 50 Nucleus ^(88)Sr显示文摘The Excited states of ^(88)Sr have been produced in the reaction ^(16)O(^(82)Se,4p6n)and studied using the in-beam γ spectroscopy techniques.Two high-spin level structures have been observed and established up to 8.5 MeV and 7.9 MeV excitation energy,respectively.Based on the measurements of the directional correlations ofγ-rays de-exciting oriented states and anisotropic factors ofγ-rays,spin values of the excited states have been assigned up to the highest levels observed. | 刘忠 T.Ishii T.Hayakawa M.Oshima Y.Toh H.Sakurai M.Notani M.Ishihara | 2001 | Chinese Physics Letters2001，18，7： | 0 |
| 2 | 利用深部非弹反应对Z≈56,N≈80区核激发态的探索性研究显示文摘通过 4 1 0MeV82 Se轰击天然Ba靶引起的深部非弹反应布居产生了类弹和类靶余核的激发态 ,利用在束γ谱学方法测量了它们的退激γ .通过γ -γ符合测量估计了类弹、类靶余核激发态的产生截面 ,在多个类靶余核中观测到了新γ跃迁 ,并建立了136 Ba的新能级纲图 ,说明利用深部非弹反应研究Z≈ 56,N≈ 80区高自旋态是有效。 | 刘忠 M.Oshima T.Ishii T.Hayakawa Y.Toh Y.Hatsukawa H.Sakurai M.Notani M.Ishihara | 2001 | 高能物理与核物理2001，25，9： | 0 |
| 3 | Study of Proton Resonances in ^(22)Mg by Resonant Elastic Scattering of ^(21)Na+p and Its Astrophysical Implication in ^(18)Ne(α,p) ^(21)Na Reaction Rate显示文摘Proton resonant states in 22Mg have been investigated by the resonant elastic scattering of 21Na+p. The 21Na beam with a mean energy of 4.00 MeV/u was separated by the CNS radioactive ion beam separator(CRIB) and bombarded a thick(CH2)n target. The energy spectra of recoiled protons were measured at scattering angles of θcm ≈172° and 146°,respectively. A new state at 7.06 MeV has been observed clearly and another new one at 7.28 MeV is tentatively identified due to its low statistics. The proton resonant parameters were deduced from an R-matrix analysis of the differential cross section data. The astrophysical resonant reaction rate for the 18Ne(α,p)21Na reaction has been estimated,and it is about five times larger than that assumed before. | S.Kubono T.Teranishi M.Notani H.Baba S.Nishimura J.Y.Moon M.Nishimura S.Michimasa H.Iwasaki Y.Yanagisawa N.Hokoiwa M.Kibe J.H.Lee S.Kato Y.Gono C.S.Lee | 2009 | 原子核物理评论2009，26，S1： | 0 |
| 4 | 中子数 N=50核^(88)Sr的高自旋态显示文摘在用82Se束流和天然 Ba靶之间的深部非弹反应研究类靶余核激发态时,Ba靶严重氧化,88Sr的激发态由16O与82Se之间的融合蒸发反应产生.通过在束γ谱学方法测量了88 Sr的退激 γ射线,提取了γ跃迁的 DCO系数和角分布各向异性因子,对所有能级进行了自旋指定.在已知能级之上观测到了两个高自旋能级结构,自旋、激发能分别达到13h,8520keV和12h,7909keV.根据能级衰变特征和邻近N=50同中子素的能级结构系统性,对高自旋态的组态进行了讨论. | 刘忠 M.Oshima T.Ishii T.Hayakawa Y.Toh Y.Hatsukawa H.Sakurai M.Notani M.Ishihara | 2001 | 高能物理与核物理2001，25，10： | 0 |
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