High spin states in neutron-rich 106Tc nucleus

中国物理C, 2009, 33(z1): 182-184.

^1, , ^2, , ^3, , ^4, , ^5, , ^6, , ^7, , ^8, , ^9, , ^10, , ^11, , ^12, , ^13, , ^14,

1.Department of Physics, Tsinghua University, Beijing 100084, China

2.Department of Physics, Tsinghua University, Beijing 100084, China;Department of Physics, Vanderbilt University, Nashville, TN 37235, USA

3.Department of Physics, Vanderbilt University, Nashville, TN 37235, USA

4.Department of Physics, Vanderbilt University, Nashville, TN 37235, USA

5.Department of Physics, Vanderbilt University, Nashville, TN 37235, USA

6.Department of Physics, Vanderbilt University, Nashville, TN 37235, USA;Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA

7.Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA

8.Department of Physics, Vanderbilt University, Nashville, TN 37235, USA

9.Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA

10.Department of Physics, Tsinghua University, Beijing 100084, China

11.Department of Physics, Tsinghua University, Beijing 100084, China

12.Department of Physics, Tsinghua University, Beijing 100084, China

13.Department of Physics, Tsinghua University, Beijing 100084, China

14.Department of Physics, Tsinghua University, Beijing 100084, China

基金项目: 国家自然科学基金(10575057;10775078) 国家高技术研究发展计划(863计划)(20070003149) U. S. Department of Energy(DE-FG05-88ER40407;DE-AC03-76SF00098) 国家重点基础研究发展规划(973计划)(2007CB815005)

High spin states in neutron-rich 106Tc nucleus

GU Long ^1, , ZHU Sheng-Jiang ^2, , J.H. Hamilton ^3, , A.V. Ramayya ^4, , J.K. Hwang ^5, , Y. X. Luo ^6, , J.O. Rasmussen ^7, , K. Li ^8, , I.Y. Lee ^9, , XU Qiang ^10, , CHE Xing-Lai ^11, , WANG Jian-Guo ^12, , DING Huai-Bo ^13, , YANG Yun-Yi ^14,

1.Department of Physics, Tsinghua University, Beijing 100084, China

2.Department of Physics, Tsinghua University, Beijing 100084, China;Department of Physics, Vanderbilt University, Nashville, TN 37235, USA

3.Department of Physics, Vanderbilt University, Nashville, TN 37235, USA

4.Department of Physics, Vanderbilt University, Nashville, TN 37235, USA

5.Department of Physics, Vanderbilt University, Nashville, TN 37235, USA

6.Department of Physics, Vanderbilt University, Nashville, TN 37235, USA;Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA

7.Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA

8.Department of Physics, Vanderbilt University, Nashville, TN 37235, USA

9.Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA

10.Department of Physics, Tsinghua University, Beijing 100084, China

11.Department of Physics, Tsinghua University, Beijing 100084, China

12.Department of Physics, Tsinghua University, Beijing 100084, China

13.Department of Physics, Tsinghua University, Beijing 100084, China

14.Department of Physics, Tsinghua University, Beijing 100084, China

Keywords： spontaneous fission

The high spin states of the neutron-rich odd-odd 106Tc nucleus have been reinvestigated by observing prompt γ-rays from the spontaneous fission of 252Cf. A previously known collective band is confirmed and expanded, and a new collective band is newly identified. Several levels in previous report in 106Tc are reexamined and they belong to the members of a band in 107Tc. The total Routhian surface (TRS) calculations show that the 106Tc has triaxial shape. The spins and parities as well as the configurations for these bands have been tentatively assigned according to the analysis of the angular momentum alignments.

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