Axially deformed relativistic Hartree Bogoliubov theory with a separable pairing force
文献类型：期刊论文
| 作者 | Tian, Yuan1,2,3; Ma, Zhong-yu1,2,4; Ring, P.2,3 |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2009-08 |
| 卷号 | 80 |
| ISSN号 | 0556-2813 |
| DOI | 10.1103/PhysRevC.80.024313 |
| 英文摘要 | A separable form of pairing interaction in the (1)S(0) channel has been introduced and successfully applied in the description of both static and dynamic properties of superfluid nuclei. By adjusting the parameters to reproduce the pairing properties of the Gogny force in nuclear matter, this separable pairing force is successful in depicting the pairing properties of ground states and vibrational excitations of spherical nuclei on almost the same footing as the original Gogny force. In this article, we extend these investigations for relativistic Hartree-Bogoliubov theory in deformed nuclei with axial symmetry (RHBZ) using the same separable pairing interaction. To preserve translational invariance we construct one- and two-dimensional Talmi-Moshinsky brackets for the cylindrical harmonic oscillator basis. We show that the matrix elements of this force can then be expanded in a series of separable terms. The convergence of this expansion is investigated for various deformations. We observe a relatively fast convergence. This allows for a considerable reduction in computing time as compared to RHBZ calculations with the full Gogny force in the pairing channel. As an example we solve the RHBZ equations with this separable pairing force for the ground states of the chain of Sm isotopes. Good agreement with the experimental data as well as with other theoretical results is achieved. |
| WOS关键词 | GROUND-STATE PROPERTIES ; MEAN-FIELD-THEORY ; TRANSFORMATION BRACKETS ; NUCLEAR-STRUCTURE ; FINITE NUCLEI ; LIGHT-NUCLEI ; DRIP-LINE ; ISOTOPES ; DENSITY ; MODELS |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000269640400023 |
| 源URL | [http://119.78.100.186/handle/113462/56893]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Tian, Yuan |
| 作者单位 | 1.China Inst Atom Energy, Beijing 102413, Peoples R China 2.CAS, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China 3.Tech Univ Munich, Dept Phys, D-85748 Garching, Germany 4.Natl Lab Heavy Collis, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Yuan,Ma, Zhong-yu,Ring, P.. Axially deformed relativistic Hartree Bogoliubov theory with a separable pairing force[J]. PHYSICAL REVIEW C,2009,80. |
| APA | Tian, Yuan,Ma, Zhong-yu,&Ring, P..(2009).Axially deformed relativistic Hartree Bogoliubov theory with a separable pairing force.PHYSICAL REVIEW C,80. |
| MLA | Tian, Yuan,et al."Axially deformed relativistic Hartree Bogoliubov theory with a separable pairing force".PHYSICAL REVIEW C 80(2009). |
入库方式： OAI收割
来源：近代物理研究所
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