New quasibound states of the compound nucleus in alpha-particle capture by the nucleus
文献类型：期刊论文
| 作者 | Maydanyuk, Sergei P.1,2; Zhang, Peng-Ming1 ; Zou, Li-Ping1
|
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2017-07-06 |
| 卷号 | 96页码:13 |
| ISSN号 | 2469-9985 |
| DOI | 10.1103/PHYSREVc.96.014602 |
| 英文摘要 | We generalize the theory of nuclear decay and capture of Gamow that is based on tunneling through the barrier and internal oscillations inside the nucleus. In our formalism an additional factor is obtained, which describes distribution of the wave function of the the alpha particle inside the nuclear region. We discover new most stable states (called quasibound states) of the compound nucleus (CN) formed during the capture of alpha particle by the nucleus. With a simple example, we explainwhy these states cannot appear in traditional calculations of the alpha capture cross sections based on monotonic penetrabilities of a barrier, but they appear in a complete description of the evolution of the CN. Our result is obtained by a complete description of the CN evolution, which has the advantages of (1) a clear picture of the formation of the CN and its disintegration, (2) a detailed quantum description of the CN, (3) tests of the calculated amplitudes based on quantum mechanics (not realized in other approaches), and (4) high accuracy of calculations (not achieved in other approaches). These peculiarities are shown with the capture reaction of alpha+Ca-44. We predict quasibound energy levels and determine fusion probabilities for this reaction. The difference between our approach and theory of quasistationary states with complex energies applied for the alpha capture is also discussed. We show (1) that theory does not provide calculations for the cross section of alpha capture (according to modern models of the alpha capture), in contrast with our formalism, and (2) these two approaches describe different states of the a capture (for the same alpha-nucleus potential). |
| WOS关键词 | SUBBARRIER FUSION REACTIONS ; HEAVY-ION FUSION ; SUB-BARRIER FUSION ; HALF-LIVES ; COULOMB BARRIER ; CLUSTER RADIOACTIVITY ; SUPERHEAVY NUCLEI ; DECAY PROPERTIES ; RESONANT STATES ; ENERGIES |
| 资助项目 | China Scholarship Council ; Major State Basic Research Development Program in China[2015CB856903] ; National Natural Science Foundation of China[11575254] ; National Natural Science Foundation of China[11175215] ; Chinese Academy of Sciences fellowships for researchers from developing countries[2014FFJA0003] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000405203500002 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | China Scholarship Council ; Major State Basic Research Development Program in China ; National Natural Science Foundation of China ; Chinese Academy of Sciences fellowships for researchers from developing countries |
| 源URL | [http://119.78.100.186/handle/113462/45131]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Maydanyuk, Sergei P. |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Natl Acad Sci Ukraine, Inst Nucl Res, UA-03680 Kiev, Ukraine |
| 推荐引用方式 GB/T 7714 | Maydanyuk, Sergei P.,Zhang, Peng-Ming,Zou, Li-Ping. New quasibound states of the compound nucleus in alpha-particle capture by the nucleus[J]. PHYSICAL REVIEW C,2017,96:13. |
| APA | Maydanyuk, Sergei P.,Zhang, Peng-Ming,&Zou, Li-Ping.(2017).New quasibound states of the compound nucleus in alpha-particle capture by the nucleus.PHYSICAL REVIEW C,96,13. |
| MLA | Maydanyuk, Sergei P.,et al."New quasibound states of the compound nucleus in alpha-particle capture by the nucleus".PHYSICAL REVIEW C 96(2017):13. |
入库方式： OAI收割
来源：近代物理研究所
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