Identification of the ν7/2+[404] band in neutron-rich 109Ru

被引:4
作者
Ding, H. B. [1 ]
Zhu, S. J. [1 ,2 ,3 ]
Hamilton, J. H. [2 ]
Ramayya, A. V. [2 ]
Hwang, J. K. [2 ]
Li, K. [2 ]
Liu, S. H. [2 ]
Luo, Y. X. [2 ,4 ]
Rasmussen, J. O. [4 ]
Goodin, C. T. [2 ]
Lee, I. Y. [4 ]
Daniel, A. V. [2 ,3 ,5 ]
Ter-Akopian, G. M. [2 ,5 ]
Wang, J. G. [1 ]
Che, X. L. [1 ]
Gu, L. [1 ]
Ma, W. C. [6 ]
机构
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[2] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA
[3] Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA
[4] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[5] Joint Inst Nucl Res Dubna, Flerov Lab Nucl React, Dubna, Russia
[6] Mississippi State Univ, Mississippi State, MS 39762 USA
来源
PHYSICAL REVIEW C | 2008年 / 77卷 / 05期
关键词
D O I
10.1103/PhysRevC.77.057302
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The high-spin spectroscopy of neutron-rich Ru-109 is studied by measuring the prompt gamma rays from the spontaneous fission fragments of Cf-252 with 102 Compton-suppressed Ge detectors in the Gammasphere detector array. Previous band structures are confirmed and the ground state band is extended. A positive parity band based on a 332.5 keV level is newly identified. This band is proposed as a single-neutron excitation band built on the 7/2(+)[404] Nilsson orbital. Some band structural characteristics are discussed.
引用
收藏
页数:4
相关论文
共 31 条
[1]   Nuclear data sheets for A=109 [J].
Blachot, J .
NUCLEAR DATA SHEETS, 2006, 107 (02) :355-+
[2]  
Browne E., 1971, Nuclear Data Tables, V10, P81
[3]  
Butler-Moore K, 1999, J PHYS G NUCL PARTIC, V25, P2253, DOI 10.1088/0954-3899/25/11/307
[4]   High-spin structure in neutron-rich 108Ru nucleus [J].
Che, XL ;
Zhu, SJ ;
Hamilton, JH ;
Ramayya, AV ;
Hwang, JK ;
Yong-Nam, U ;
Li, ML ;
Zheng, RC ;
Lee, IY ;
Rasmussen, JO ;
Luo, YX ;
Ma, WC .
CHINESE PHYSICS LETTERS, 2004, 21 (10) :1904-1907
[5]   Technique for measuring angular correlations and g-factors of excited states with large multi-detector arrays:: An application to neutron rich nuclei produced by the spontaneous fission of 252Cf [J].
Daniel, A. V. ;
Goodin, C. ;
Li, K. ;
Ramayya, A. V. ;
Stone, N. J. ;
Hwang, Jx. ;
Hamilton, J. H. ;
Stone, J. R. ;
Luo, Yx ;
Rasmussen, J. O. ;
Stoyer, M. A. ;
Zhu, S. J. ;
Ter-Akopian, G. M. ;
Lee, I. Y. .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2007, 262 (02) :399-406
[6]   Identification of band structures and proposed one- and two-phonon γ-vibrational bands in 105Mo [J].
Ding, H. B. ;
Zhu, S. J. ;
Hamilton, J. H. ;
Ramayya, A. V. ;
Hwang, J. K. ;
Li, K. ;
Luo, Y. X. ;
Rasmussen, J. O. ;
Lee, I. Y. ;
Goodin, C. T. ;
Che, X. L. ;
Chen, Y. J. ;
Li, M. L. .
PHYSICAL REVIEW C, 2006, 74 (05)
[7]   Search for double γ-vibrational bands in neurton-rich 105Mo nucleus [J].
Ding Huai-Bo ;
Zhu Sheng-Jiang ;
Hamilton, J. H. ;
Ramayya, A. V. ;
Hwang, J. K. ;
Luo, Y. X. ;
Rasmussen, J. O. ;
Lee, I. Y. ;
Che Xing-Lai ;
Chen Yong-Jing ;
Li Ming-Liang .
CHINESE PHYSICS LETTERS, 2006, 23 (12) :3222-3225
[8]   EXPERIMENTAL BETA-DECAY ENERGIES OF VERY NEUTRON-RICH FISSION-PRODUCTS WITH 107-LESS-THAN-OR-EQUAL-TO-A-LESS-THAN-OR-EQUAL-TO-109 [J].
GRAEFENSTEDT, M ;
JURGENS, P ;
KEYSER, U ;
MUNNICH, F ;
SCHREIBER, F ;
BALOG, K ;
WINKELMANN, T ;
FAUST, HR .
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1989, 334 (03) :239-245
[9]   Prompt gamma-ray spectroscopy of the Mo-104 and Mo-108 fission fragments [J].
Guessous, A ;
Schulz, N ;
Bentaleb, M ;
Lubkiewicz, E ;
Durell, JL ;
Pearson, CJ ;
Phillips, WR ;
Shannon, JA ;
Urban, W ;
Varley, BJ ;
Ahmad, I ;
Lister, CJ ;
Morss, LR ;
Nash, KL ;
Williams, CW ;
Khazrouni, S .
PHYSICAL REVIEW C, 1996, 53 (03) :1191-1196
[10]   HARMONIC 2-PHONON GAMMA-VIBRATIONAL STATE IN NEUTRON-RICH MO-106 [J].
GUESSOUS, A ;
SCHULZ, N ;
PHILLIPS, WR ;
AHMAD, I ;
BENTALEB, M ;
DURELL, JL ;
JONES, MA ;
LEDDY, M ;
LUBKIEWICZ, E ;
MORSS, LR ;
PIEPENBRING, R ;
SMITH, AG ;
URBAN, W ;
VARLEY, BJ .
PHYSICAL REVIEW LETTERS, 1995, 75 (12) :2280-2283