首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   66篇
  免费   0篇
  国内免费   1篇
化学   3篇
数学   3篇
物理学   61篇
  2023年   1篇
  2018年   1篇
  2009年   2篇
  2008年   2篇
  2007年   2篇
  2006年   3篇
  2005年   6篇
  2004年   1篇
  2003年   2篇
  2002年   6篇
  2001年   2篇
  2000年   2篇
  1999年   4篇
  1998年   3篇
  1997年   4篇
  1996年   5篇
  1995年   2篇
  1993年   1篇
  1992年   2篇
  1991年   5篇
  1990年   5篇
  1989年   1篇
  1976年   1篇
  1974年   1篇
  1970年   1篇
  1918年   2篇
排序方式: 共有67条查询结果,搜索用时 15 毫秒
11.
High-spin states in 196Pb have been populated using the reaction 170Er(30Si,4n). The previously observed shears bands in this nucleus have been extended and some of their transitions have been reordered. They now form regular bands with band crossings. One of the bands splits into two pathways at high spin.  相似文献   
12.
13.
14.
15.
16.
17.
18.
The atomic nucleus 74Kr has been investigated using combined conversion-electron (CE) and γ-ray spectroscopy. In order to confirm the existence of the expected low-lying isomeric 0+ 2 state, the possibility of an electric-monopole (E0) decay to the ground state was examined. The observation of an E0 transition at 508 keV allowed the determination of the mixing between coexisting prolate and oblate shapes. Received: 16 November 1998  相似文献   
19.
Excited states have been identified for the first time in 184Pb, the first even-even Pb isotope beyond the 82 < N < 126 mid-shell, using the recoil-decay tagging (RDT) technique. A collective band built on the first-excited 2+ state has been observed. This resembles those seen in 186,188Pb and the Hg isotones, and can thus be associated with a prolate-deformed shape. Variable moment of inertia (VMI) fits of the prolate 0+ level energies in 184,186,188Pb indicate that the minimum appears at N= 103, the same neutron number at which the corresponding minimum in Hg isotopes is observed. Received: 19 May 1998 / Revised version: 1 July 1998  相似文献   
20.
The excitation energy of the lowest-energy superdeformed band in 196Pb is established using the techniques of time-correlated gamma-ray spectroscopy. Together with previous measurements on 192Pb and 194Pb, this result allows superdeformed excitation energies, binding energies, and two-proton and two-neutron separation energies to be studied systematically, providing stringent tests for current nuclear models. The results are examined for evidence of a "superdeformed shell gap."  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号