STRUCTURE OF RU-108,RU-110,RU-112 - IDENTICAL BANDS IN RU-108,RU-110

被引：73
|
作者：
LU, QH
BUTLERMOORE, K
ZHU, SJ
HAMILTON, JH
RAMAYYA, AV
OBERACKER, VE
MA, WC
BABU, BRS
DENG, JK
KORMICKI, J
COLE, JD
ARYAEINEJAD, R
DARDENNE, YX
DRIGERT, M
PEKER, LK
RASMUSSEN, JO
STOYER, MA
CHU, SY
GREGORICH, KE
LEE, IY
MOHAR, MF
NITSCHKE, JM
JOHNSON, NR
MCGOWAN, FK
TERAKOPIAN, GM
OGANESSIAN, YT
GUPTA, JB
机构：
[1] IDAHO NATL ENGN LAB, IDAHO FALLS, ID 83415 USA
[2] TSING HUA UNIV, DEPT PHYS, BEIJING 100084, PEOPLES R CHINA
[3] BROOKHAVEN NATL LAB, UPTON, NY 11973 USA
[4] LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA
[5] OAK RIDGE NATL LAB, DIV PHYS, OAK RIDGE, TN 37831 USA
[6] JOINT INST HEAVY ION RES, GN FLEROV LAB NUCL REACT, DUBNA, RUSSIA
[7] UNIV DELHI, RAMJAS COLL, DEPT PHYS, DELHI 110007, INDIA
[8] ORISE, UNISOR, OAK RIDGE, TN 37831 USA
来源：
PHYSICAL REVIEW C | 1995年 / 52卷 / 03期
关键词：
D O I：
10.1103/PhysRevC.52.1348
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 levels in Ru-108,Ru-110,Ru-112 have been investigated in the spontaneous fission of Cf-252 using gamma-gamma-gamma-, gamma-gamma-, x-x-, x-gamma-, and x-gamma-gamma-coincidence techniques. The levels up to 16(+) and 9(+) in the yrast bands and gamma-vibrational bands have been identified with very little energy staggering in Ru-108,Ru-110,Ru-112. The ground bands in Ru-108,Ru-110 have identical gamma-ray transition energies up to 8(+). These are the lightest observed even-even nuclei with extended identical ground bands. Calculations in a collective model which includes rotations and vibrations reproduce the level energies and gamma band branching ratios above the 3(+) state rather well, while rigid triaxial rotor model calculations reproduce the branching ratios for the 2(+) and 3(+) states.
引用
收藏
页码：1348 / 1354
页数：7
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