Magnetic rotation and quasicollective structures in Fe-58: Influence of the nu g(9/2) orbital
文献类型：期刊论文
| 作者 | Steppenbeck, D.1; Janssens, R. V. F.2; Freeman, S. J.3; Carpenter, M. P.2; Chowdhury, P.4; Deacon, A. N.3; Honma, M.5; Jin, H.6; Lauritsen, T.2; Lister, C. J.2 |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2012-04-16 |
| 卷号 | 85 |
| ISSN号 | 0556-2813 |
| DOI | 10.1103/PhysRevC.85.044316 |
| 文献子类 | Article |
| 英文摘要 | The structure of Fe-58 was investigated at Gammasphere using Ca-48(C-13,C-14,xn) fusion-evaporation reactions at a beam energy of 130 MeV. The level scheme has been revised and extended to J similar to 17 (h) over bar and an excitation energy of 16.6 MeV. Regular band structures consisting of low-energy Delta J = 1 (h) over bar transitions have been observed at moderate spin (J similar to 8 (h) over bar -15 (h) over bar) and are candidates for magnetic rotational bands. Self-consistent tilted-axis-cranking calculations within a relativistic mean-field theory were applied to investigate these bands and were found to reproduce the experimental results well. In other parts of the level scheme, quasirotational bands composed of stretched-E2 transitions have been extended to high spin, and other new bands have been identified. Positive-parity experimental states were compared to predictions of the spherical shell model using the GXPF1A, KB3G, and FPD6 effective interactions in the fp model space. The projected shell model, with a deformed quasiparticle basis including the neutron nu g(9/2) orbital, was applied to interpret regular Delta J = 2 (h) over barh band structures that extend beyond the maximum spin available for pi left perpendicular(f(7/2))(-2)right perpendicular circle times nu left perpendicular(p(3/2)f(5/2)p(1/2))(4)right perpendicular configurations and exhibit features characteristic of rotational alignment. It is clear that the nu g(9/2) intruder orbital plays a crucial role in describing the quasirotational structures in this nucleus, even starting as low as J similar to 5 (h) over bar. |
| WOS关键词 | TILTED-AXIS CRANKING ; SHELL-MODEL ; SHEARS MECHANISM ; EXOTIC NUCLEI ; GROUND-STATE ; BANDS ; ISOTOPES ; HEAVY ; N=32 ; SPECTROSCOPY |
| 资助项目 | Science and Technology Facilities Council[ST/J000159/1] ; Science and Technology Facilities Council[ST/F012071/1] ; Science and Technology Facilities Council[ST/G00871X/1] ; Science and Technology Facilities Council[ST/F008805/1] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000302855700004 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://119.78.100.186/handle/113462/49099]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Steppenbeck, D. |
| 作者单位 | 1.RIKEN, Nishina Ctr, Wako, Saitama 3510198, Japan 2.Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA 3.Univ Manchester, Schuster Lab, Manchester M13 9PL, Lancs, England 4.Univ Massachusetts Lowell, Dept Phys, Lowell, MA 01854 USA 5.Aizu Univ, Ctr Math Sci, Aizu Wakamatsu, Fukushima 9658580, Japan 6.Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China 7.Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 8.Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China 9.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 10.Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37966 USA |
| 推荐引用方式 GB/T 7714 | Steppenbeck, D.,Janssens, R. V. F.,Freeman, S. J.,et al. Magnetic rotation and quasicollective structures in Fe-58: Influence of the nu g(9/2) orbital[J]. PHYSICAL REVIEW C,2012,85. |
| APA | Steppenbeck, D..,Janssens, R. V. F..,Freeman, S. J..,Carpenter, M. P..,Chowdhury, P..,...&Zhu, S..(2012).Magnetic rotation and quasicollective structures in Fe-58: Influence of the nu g(9/2) orbital.PHYSICAL REVIEW C,85. |
| MLA | Steppenbeck, D.,et al."Magnetic rotation and quasicollective structures in Fe-58: Influence of the nu g(9/2) orbital".PHYSICAL REVIEW C 85(2012). |
入库方式： OAI收割
来源：近代物理研究所
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