期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

ΛN张量相互作用的首次观测 被引量：1

First Observation of the ΛN Tensor Interaction
原文传递
导出
摘要 在用HYPERBALL进行的16ΛO的γ射线谱学测量中,观察到由16ΛO的6.6MeV1-2激发态跃迁到基态自旋翻转二重态(1-1和0-)之间的两条γ射线.由这两条γ射线的能量差得到基态二重态之间的能量间隔为26.4±1.6(stat)±0.5(syst)keV,并由此推导出ΛN之间的张量相互作用强度T=0.03MeV.实验还测定了16ΛO的1-2激发态的激发能为6561.7±1.1(stat)±1.7(syst)keV. In a _Λ^(16)O γ-ray spectroscopy experiment with HYPERBALL,two γ-ray transitions from the 6.6MeV excited 1_2^- state to both ground-states spin-doublet members _1^- and 0^- have been observed.The measured ground-state doublet spacing is 26.4±1.6(stat)±0.5(syst)keV.Thus a small but nonzero strength of the tensor interaction between a Λ and a nucleon is deduced to be T=+0.03MeV.The excitation energy of the 1_2^- state is also determined to be 6561.7±1.1(stat)±1.7(syst)keV.
作者 周书华 周静 孟秋英 S.Ajimura H.Akikawa D.E.Alburger A.Banu R.E.Chrien G.B.Franklin J.Franz O.Hashimoto T.Hayakawa H.Hotchi K.Imai T.Kishimoto M.May D.J.Millener S.Minami Y.Miura T.Miyoshi K.Mizunuma T.Nagae S.N.Nakamura K.Nakazawa Y.Okayasu P.Pile B.P.Quinn A.Rusek Y.Sato R.Sutter H.Takahashi L.Tang H.Tamura K.Tanida M.Ukai L.Yuan
机构地区 中国原子能科学研究院 Department of Physics Department of Physics Brookhaven National Laboratory GSI Carnegie Mellon University Department of Physics Department of Physics Institute of Particle and Nuclear Studies Department of Physics Department of Physics RIKEN
出处 《高能物理与核物理》 CSCD 北大核心 2005年第7期627-631,共5页 High Energy Physics and Nuclear Physics
基金 国家自然科学基金(1987507 10375094) U.S.DOE(DEAC0298CH10886) GrantinAidforScientificResearchfromtheMinistryofEducationofJapan(11440070 15204014)资助~~
关键词 张量 观测 相互作用强度 Γ射线 基态自旋 激发态 能量差 激发能 谱学 跃迁 hyper-nuclei,ΛN tensor interaction,γ-ray spectroscopy
分类号 O571 [理学—粒子物理与原子核物理]
  • 相关文献

参考文献15

  • 1Millener D J et al. Phys. Rev.,1985,C31:499-509
  • 2Millener D J.In Hypernuclear Physics with Electromagnetic Probes. Tang L,Hashimoto O. Hampton:Hampton University,1999.79
  • 3Tamura H et al. Phys. Rev. Lett.,2000,84:5963-5966
  • 4周书华.高能物理与核物理,2002,24:81-81.
  • 5Akikawa H et al. Phys. Rev. Lett.,2002,88:082501-1-082501-4
  • 6Millener D J. nucl-th/0402091[Nucl. Phys. A (to be published)]
  • 7Pile P H et al. Nucl. Instrum. Methods Phys. Res.,1992,Sect.A321:48-58
  • 8Brückner et al. Phys. Lett.,1987,79B:157-160
  • 9Kohri H et al. Phys. Rev.,2002,C65:034607-1-034607-9
  • 10Tamura H et al. Prog. Theor. Phys.,1994,117(Suppl.):1-15

共引文献1

同被引文献25

  • 1DANYSZ M, PNIEWSKI J P M. Progress in p-shell A hypernuclear spectroscopy [J]. Phil Mag, 1953, 44: 348-350.
  • 2HASHIMOTO O, TAMURA H. Progress in p-shell A hypernuclear spectroscopy [J]. Progress in Particle and Nuclear Physics, 2006, 57: 564-653.
  • 3MIYOSHI T, SARSOUR M, YUAN L, et al High resolution spectroscopy of the ^12B hypernu cleus produced by the (e, e'K^+) reaction[J]. Phys Rev Lett, 2003, 90: 232502-1-232502-5.
  • 4HASHIMOTO O, AJIMURA S, AOKIK B, et al. The (π^+ , K^+ ) reaction and light A hypernuclear spectroscopy[J]. Nucl Phys A, 1998, 639: 93c-102c.
  • 5ITONAGA K, MOTOBA T, RICHTER O, et al. Hypernuclear and A-spin polarizations produced in the (π^+ , K^+ ) reaction[J]. Phys Rev C, 1994, 49:1 045-1 058.
  • 6MILLINER D J. Shell-model description of A hypernuclei[J]. Nucl Phys A, 2001, 691: 93c- 100c.
  • 7BOHM G, KLABUHEN J, KRECKER U, et al. A new determination of the binding-energy values of the light hypernuclei (A≤15)[J]. Nucl Phys B, 1973, 52: 1-30.
  • 8DALITZ R H, GAL A. Supersymmetric and strangeness analog states in p-shell A hypernuclei [J]. Phys Rev Lett, 1976, 36: 362-365.
  • 9BANDO H, Consequences of the cluster model of light hypernuclei[J]. Nucl Phys A, 1986, 450: 217c-236c.
  • 10YAMADA T, IKEDA K, BAND H, et al. Cluster model theory of the ^9Be hypernucleus [J]. Phys Rev C, 1988, 38: 854-866.

引证文献1

高能物理与核物理
2005年 第7期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部