Investigations of Cluster Effects in Atomic Nuclei
-
摘要: 介绍了近期关于原子核结团效应的研究。利用Tohsaki-Horiuchi-Schuck-Röpke(THSR)波函数研究了20Ne和9,10Be等原子核的结团结构。研究发现单个的THSR波函数即可很好地描述原子核的结团态。利用hybrid-THSRBrink波函数,发现了原子核结团的非局域化动力学性质。拓展了THSR波函数并使其能够应用于N≠Z的原子核之中。这一波函数正确地重现了9,10Be同位素的较低能级中的核分子轨道结构。还讨论了丰质子/中子原子核中的α-衰变过程。研究发现质子/中子皮对α-衰变寿命有显著影响。
We introduce our recent works on the clustering effects in atomic nuclear systems. The clustering structures for 20Ne and 9,10Be isotopes are studied with the Tohsaki-Horiuchi-Schuck-Röpke (THSR) wave function. It is found that a single THSR wave function can provide good description for the cluster state. The nonlocalised aspect of cluster dynamics is discovered with the hybrid-THSR-Brink wave function. Extensions are made for the THSR wave function to enable studies of N≠Z nuclei. The nuclear molecular orbit structures in low lying states of 9,10Be isotopes are correctly reproduced with this wave function. We also discuss the α-decay processes for proton/neutron-rich nuclei. The effect of proton/neutron skin is found to be considerable on α-decay half-life.Abstract: We introduce our recent works on the clustering effects in atomic nuclear systems. The clustering structures for 20Ne and 9,10Be isotopes are studied with the Tohsaki-Horiuchi-Schuck-Röpke (THSR) wave function. It is found that a single THSR wave function can provide good description for the cluster state. The nonlocalised aspect of cluster dynamics is discovered with the hybrid-THSR-Brink wave function. Extensions are made for the THSR wave function to enable studies of N≠Z nuclei. The nuclear molecular orbit structures in low lying states of 9,10Be isotopes are correctly reproduced with this wave function. We also discuss the α-decay processes for proton/neutron-rich nuclei. The effect of proton/neutron skin is found to be considerable on α-decay half-life.-
Key words:
- cluster structure /
- nonlocalised cluster dynamics /
- neutron-rich nuclei /
- &alpha /
- -decay
-
[1] TOHSAKI A, HORIUCHI H, SCHUCK P, et al. Phys Rev Lett, 2001, 87:192501. [2] FUNAKI Y, HORIUCHI H, TOHSAKI A, et al. Prog. Theor Phys, 2002, 108:297. [3] ZHOU B, REN Z, XU C, et al. Phys Rev C, 2012, 86:014301. [4] ZHOU B, FUNAKI Y, HORIUCHI H,et al. Phys Rev Lett, 2013, 110:262501. [5] ZHOU B, FUNAKI Y, HORIUCHI H, et al. Phys Rev C, 2014, 89:034319. [6] SUHARA T, FUNAKI Y, ZHOU B, et al. Phys Rev Lett, 2014, 112:062501. [7] LYU M, REN Z, ZHOU B, et al. Phys Rev C, 2015, 91:014313. [8] LYU M, REN Z, ZHOU B, et al. Phys Rev C, 2016, 93:054308. [9] YAMADA T, SCHUCK P. Eur Phys J A, 2005, 26:185. [10] XU C, REN Z. Phys Rev C, 2006, 73:041301. [11] REN Y, REN Z. Phys Rev C, 2012, 85:044608. [12] REN Y, REN Z. Nucl Sci Tech, 2013, 24:050518. [13] QIAN Y, REN Z. J Phys G-Nucl Part Phys, 2016, 43:065102. [14] NI D, REN Z. Phys Rev C, 2016, 93:054318. [15] NI D, REN Z. Phys Rev C, 2015, 92:054322. [16] WAN N, XU C, REN, Z. Nucl Sci Tech, 2017, 28:22. [17] NI D, REN Z, DONG T, XU C. Phys Rev C, 2008, 78:044310. [18] KOBAYASHI F, KANADA-EN'YO Y. Prog Theor Phys, 2011, 126:457. [19] KOBAYASHI F, KANADA-EN'YO Y. Phys Rev C, 2012, 86:064303. [20] SUHARA T, KANADA-EN'YO Y. Prog Theor Phys, 2010, 123:303. [21] KRANE K S. Introductory Nuclear Physics[M]. New York:Wiley, University of Michigan, 1987. [22] LU X T. Nuclear Physics[M]. Beijing:Atomic Energy Press, 2008. (in Chinese) (卢希庭. 原子核物理[M]. 北京:原子能出版社, 2008.) [23] GURVITZ S A, KALBERMANN G. Phys Rev Lett, 1987, 59:262. [24] WALECKA J D. Theoretical Nuclear and Subnuclear Physics[M]. London:Imperial College Press, 2004. [25] TARBERT C M. Phys Rev Lett, 2014, 112:242502. [26] AUDI G, WANG M, WAPSTRA A H, et al. Chin Phys C, 2012, 36:1287. [27] FIRESTONE R B, SHIRLEY V S, BAGLIN C M, et al. Table of Isotopes, 8th ed[M]. New York:Wiley Interscience, 1996.
计量
- 文章访问数: 1277
- HTML全文浏览量: 199
- PDF下载量: 140
- 被引次数: 0