Population of yrast states in Os-191 using deep-inelastic reactions
文献类型：会议论文
| 作者 | Jones, GA; Podolyak, Z; Walker, PM; Regan, PH; de Angelis, G; Axiotis, M; Bazzacco, D; Bizzeti, PG; Brandolini, F; Broda, R |
| 出版日期 | 2005-10 |
| 卷号 | 31 |
| 期号 | 10 |
| DOI | 10.1088/0954-3899/31/10/095 |
| 页码 | S1891-S1894 |
| 英文摘要 | Several nuclei in the A similar to 190 region have been studied following deep-inelastic reactions using a 460 MeV Se-82 projectile impinging upon a thick Os-192 target. The GASP array (at the Legnaro National Laboratory in Italy) was used to measure the resulting gamma-decays. The previously reported near-yrast structure of Os-191 is extended to a t(1/2) = 61 ns isomer, at an energy of 2640 keV. Branching ratios for Delta I = 1 and Delta I = 2 transitions in the K-pi 11/2(+) band have been measured, giving vertical bar(g(K) - g(R))/Q(0)vertical bar = 0.022(3) and 0.024(7) for transitions from the 17/2(+) and (19/2(+)) states respectively. These are consistent with the theoretical calculation for the proposed nu 11/2(+)[615] configuration of the band. Nilsson plus BCS calculations reveal that the isomer is likely to have a {nu 1/2(+)[615] circle times pi 9/2(-)[505] circle times pi 9/2(-)[514]} configuration with J(pi) = K-pi = 31/2(+). This yields an implied reduced hindrance of f(v) = 1.9, in accordance with empirical systematics of K isomers in the A similar to 180-190 region. |
| 会议录 | JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
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| 会议录出版者 | IOP PUBLISHING LTD |
| 会议录出版地 | DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND |
| 语种 | 英语 |
| WOS研究方向 | Physics |
| WOS记录号 | WOS:000232575600097 |
| 源URL | [http://119.78.100.186/handle/113462/57234]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Jones, GA |
| 作者单位 | 1.Univ Surrey, Dept Phys, Guildford GU2 7HX, Surrey, England 2.Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy 3.Univ Padua, Dipartimento Fis, Padua, Italy 4.Ist Nazl Fis Nucl, Padua, Italy 5.Univ Florence, Dipartimento Fis, Florence, Italy 6.Ist Nazl Fis Nucl, I-50125 Florence, Italy 7.H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland 8.Inst Phys & Nucl Engn, Bucharest, Romania 9.Univ Sao Paulo, Inst Fis, Sao Paulo, Brazil 10.Univ Salamanca, E-37008 Salamanca, Spain |
| 推荐引用方式 GB/T 7714 | Jones, GA,Podolyak, Z,Walker, PM,et al. Population of yrast states in Os-191 using deep-inelastic reactions[C]. 见:. |
入库方式： OAI收割
来源：近代物理研究所
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