Odd-even staggering in yields of neutron-deficient nuclei produced by projectile fragmentation
文献类型:期刊论文
作者 | Mei, B.1,2,3; Xu, H. S.1![]() ![]() ![]() ![]() ![]() |
刊名 | PHYSICAL REVIEW C
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出版日期 | 2016-10-25 |
卷号 | 94页码:6 |
ISSN号 | 2469-9985 |
DOI | 10.1103/PhysRevC.94.044615 |
英文摘要 | Background: Fragment yields exhibit a strong odd-even staggering (OES). This OES has been experimentally observed in different fragmentation reactions with different projectile-target combinations. However, the experimental data are still scarce for fragments close to drip lines and the origin of this OES is not well understood. Purpose: More experimental data are needed to explore the origin of this OES in fragment yields and to validate fragmentation reaction models, especially for nuclei close to the drip lines. To study the pronounced OES near the proton drip line, we measured the yields of T-z = -1 and T-z = -3/2 nuclei over a wide range of mass number. Methods: The combination of a fragment separator and a storage ring at the Heavy Ion Research Facility in Lanzhou has been used to measure the yields of T-z = -1 and T-z = -3/2 fragments, produced by Ni-58 projectiles impinging on a beryllium target at an energy of about 463 MeV/nucleon. Results: A very strong OES is observed in the measured yields of both T-z = -1 and T-z = -3/2 fragments. Our experimental data demonstrate that the shell structure has a significant impact on the magnitude of this OES. A comparison of different fragmentation reaction data indicates that this OES is almost independent of the projectile-target combinations and the fragmentation energy between 140 and 650 MeV/nucleon. Conclusions: Our study reveals that the OES of fragment yields originates mainly from the OES of particle-emission threshold energies, which is very close to the OES of fragment yields when the Coulomb barrier is considered in particle-emission threshold energies. |
WOS关键词 | PRODUCTION CROSS-SECTIONS ; ISOCHRONOUS MASS-SPECTROMETRY ; STORAGE-RINGS ; RICH NUCLEI ; COLLISIONS ; HYDROGEN ; REFERENCES ; ISOTOPES ; PHYSICS ; GRAPHS |
资助项目 | 973 Program of China[2013CB834401] ; National Natural Science Foundation of China[10925526] ; National Natural Science Foundation of China[11035007] ; National Natural Science Foundation of China[U1232208] ; National Natural Science Foundation of China[10675147] ; National Natural Science Foundation of China[10805059] ; National Natural Science Foundation of China[11135005] ; National Natural Science Foundation of China[11075103] ; Project Extreme Light Infrastructure Nuclear Physics (ELI-NP) - Phase I - Romanian Government ; European Union through the European Regional Development Fund ; CAS Pioneer Hundred Talents Program ; BMBF grant of the Internationale Zusammenarbeit in Bildung und Forschung[01DO12012] ; Helmholtz-CAS Joint Research Group[HCJRG-108] ; External Cooperation Program of the Chinese Academy Sciences[GJHZ1305] ; Max-Planck Society ; ESF through EuroGENESIS program ; HIC for FAIR |
WOS研究方向 | Physics |
语种 | 英语 |
WOS记录号 | WOS:000390177300001 |
出版者 | AMER PHYSICAL SOC |
资助机构 | 973 Program of China ; National Natural Science Foundation of China ; Project Extreme Light Infrastructure Nuclear Physics (ELI-NP) - Phase I - Romanian Government ; European Union through the European Regional Development Fund ; CAS Pioneer Hundred Talents Program ; BMBF grant of the Internationale Zusammenarbeit in Bildung und Forschung ; Helmholtz-CAS Joint Research Group ; External Cooperation Program of the Chinese Academy Sciences ; Max-Planck Society ; ESF through EuroGENESIS program ; HIC for FAIR |
源URL | [http://ir.impcas.ac.cn/handle/113462/23330] ![]() |
专题 | 近代物理研究所_实验物理中心 近代物理研究所_兰州重离子研究装置 中国科学院近代物理研究所 |
通讯作者 | Mei, B. |
作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Horia Hulubei Natl Inst Phys & Nucl Engn, Extreme Light Infrastruct Nucl Phys, Str Reactorului 30, Bucharest 077125, Romania 3.GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany 4.Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany 5.Univ Sci & Technol China, Hefei 230026, Peoples R China |
推荐引用方式 GB/T 7714 | Mei, B.,Xu, H. S.,Zhang, Y. H.,et al. Odd-even staggering in yields of neutron-deficient nuclei produced by projectile fragmentation[J]. PHYSICAL REVIEW C,2016,94:6. |
APA | Mei, B..,Xu, H. S..,Zhang, Y. H..,Wang, M..,Tu, X. L..,...&Zhan, W. L..(2016).Odd-even staggering in yields of neutron-deficient nuclei produced by projectile fragmentation.PHYSICAL REVIEW C,94,6. |
MLA | Mei, B.,et al."Odd-even staggering in yields of neutron-deficient nuclei produced by projectile fragmentation".PHYSICAL REVIEW C 94(2016):6. |
入库方式: OAI收割
来源:近代物理研究所
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