Signatures of shell evolution in alpha decay across the <em>N</em>=126 shell closure

Rui-Wang; Rui-Yao Wang; Yi-Bin Qian; Zhong-Zhou Ren

doi:10.1088/1674-1137/41/6/064103

Chinese Physics C> 2017, Vol. 41> Issue(6) : 064103 DOI: 10.1088/1674-1137/41/6/064103

Signatures of shell evolution in alpha decay across the N=126 shell closure

Rui-Wang ¹ ,
Rui-Yao Wang ¹ ,
Yi-Bin Qian ^1,2,, ,
Zhong-Zhou Ren ^2,3,4,,

1.
Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China
2.
Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China
3.
Key Laboratory of Modern Acoustics and Department of Physics, Nanjing University, Nanjing 210093, China
4.
Key Laboratory of Modern Acoustics and Department of Physics, Nanjing University, Nanjing 210093, China
5.
Kavli Institute for Theoretical Physics China, Beijing 100190, China
6.
Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China

Abstract
HTML
Reference
Related

PDF

Abstract：
Within the alpha-cluster model, we particularly investigate the alpha decay of exotic nuclei in the vicinity of the N=126 neutron shell plus the Z=82 proton shell. The systematics of alpha-preformation probability (P_α), as an indicator of the shell effect, is deduced from the ratio of the experimental decay width to the calculated one. Through the comparative analysis of the P_α trend in the N=124-130 isotonic chain, the N=126 and Z=82 shell closures are believed to strongly affect the formation of the alpha particle before its penetration. Additionally, the P_α variety in Po and Rn isotopes is presented as another proof for such an influence. More importantly, it may be concluded that the expected neutron (or proton) shell effect gradually fades away along with the increasing valence proton (or neutron) number. The odd-even staggering presented in the P_α value is also discussed.
- alpha-preformation factor ,
- shell effect ,
- cluster model

References

[1]	M. Pftzner, M. Karny, L. V. Grigorenko, and K. Riisager, Rev. Mod. Phys., 84: 567 (2012)
[2]	R. G. Lovas, R. J. Liotta, A. Insolia, K. Varga, and D. S. Delion, Phys. Rep., 294: 265 (1998)
[3]	Yu Ts Oganessian and V K Utyonkov, Rep. Prog. Phys., 78: 036301 (2015)
[4]	S. Hofmann, J. Phys. G: Nucl. Part. Phys., 42: 114001 (2015)
[5]	J. Wauters, N. Bijnens, P. Dendooven, M. Huyse, H. Hwang, G. Reusen, J. von Schwarzenberg, P. Van Duppen, R. Kirchner, and E. Roeckl, Phys. Rev. Lett., 72: 1329 (1994)
[6]	A. N. Andreyev, M. Huyse, P. Van Duppen et al, Phys. Rev. Lett., 110: 242502 (2013)
[7]	J. Khuyagbaatar, A. Yakushev, Ch. E. Dllmann et al, Phys. Rev. Lett., 115: 242502 (2015)
[8]	G. Gamow, Z. Phys., 51: 204 (1928)
[9]	R. W. Gurney and E. U. Condon, Nature (London), 122: 439 (1928)
[10]	H. J. Mang, Annu. Rev. Nucl. Sci., 14: 1 (1964)
[11]	J. O. Rasmussen, Phys. Rev., 113: 1593 (1959)
[12]	C. Qi, A. N. Andreyev, M. Huyse, R. J. Liotta, P. Van Duppen, and R. Wyss, Phys. Lett. B, 734: 203-206 (2014)
[13]	Chang Xu and Zhongzhou Ren, High Energy Physics and Nuclear Physics, 28: 502-506 (2004) (in Chinese)
[14]	D. S. Delion, Phys. Rev. C, 80: 024310 (2009)
[15]	G. L. Zhang, X. Y. Le, and H. Q. Zhang, Phys. Rev. C, 80: 064325 (2009)
[16]	H. F. Zhang and G. Royer, Phys. Rev. C, 77: 054318 (2008)
[17]	H. F. Zhang, G. Royer, Y. J. Wang, J. M. Dong, W. Zuo, and J. Q. Li, Phys. Rev. C, 80: 057301 (2009)
[18]	Dongdong Ni and Zhongzhou Ren, Phys. Rev. C, 80: 014314 (2009)
[19]	M. Ismail, A. Y. Ellithi, M. M. Botros, and A. Adel, Phys. Rev. C, 81: 024602 (2010)
[20]	W. M. Seif, J. Phys. G: Nucl. Part. Phys., 40: 105102 (2013)
[21]	Yibin Qian and Zhongzhou Ren, Nucl. Phys. A, 852: 82-91 (2011)
[22]	Daming Deng and Zhongzhou Ren, Phys. Rev. C, 93: 044326 (2016)
[23]	Yibin Qian and Zhongzhou Ren, Sci. China: Phys. Mech. Astron, 56: 1520 (2013)
[24]	B. Buck, A. C. Merchant, and S. M. Perez, At. Data Nucl. Data Tables, 54: 53 (1993)
[25]	K. Wildermuth and Y. C. Tang, A Unified Theory of the Nucleus (New York: Academic Press, 1997)
[26]	A. Bohr and B. R. Mottelson, Nuclear Structure (Singapore: World Scientific, 1998)
[27]	Chang Xu and Zhongzhou Ren, Nucl. Phys. A, 753: 174-185 (2005)
[28]	M. Wang, G. Audi, A. H. Wapstra, F. G. Kondev, M. MacCormick, X. Xu, and B. Pfeiffer, Chin. Phys. C, 36: 1603-2014 (2012); G. Audi, F. G. Kondev, M. Wang, B. Pfeiffer, X. Sun, J. Blachot, and M. MacCormick, Chin. Phys. C, 36: 1157-1286 (2012)
[29]	Shu-Wei Xu, Guo-Hua Wu, Rong-Zhi Miao, and Fei Han, High Energy Physics and Nuclear Physics, 7: 95-100 (1983) (in Chinese)

[1]	Jun-Gang Deng , Jun-Hao Cheng , Xiao-Jun Bao , Hong-Fei Zhang . Systematic study of cluster radioactivity within the generalized liquid drop model. Chinese Physics C, 2024, 48(6): 064101. doi: 10.1088/1674-1137/ad30ef
[2]	S.B. Dubovichenko , B.M. Yeleusheva , N.A. Burkova , A.S. Tkachenko . Radiative ⁹Be(n,γ_0+1+2+3+4+5)¹⁰Be reaction rate in the potential cluster model. Chinese Physics C, 2023, 47(8): 084105. doi: 10.1088/1674-1137/acdb55
[3]	M. V. Egorov , V. I. Postnikov . Deuteron inelastic scattering on ⁶Li and ⁷Li nuclei within the three-body cluster model. Chinese Physics C, 2021, 45(1): 014108. doi: 10.1088/1674-1137/abc248
[4]	Jing Zhang , De-Jun E , Hong-Fei Zhang . Effects of shell correction on α decay properties. Chinese Physics C, 2018, 42(9): 094101. doi: 10.1088/1674-1137/42/9/094101
[5]	Dong Bai , Zhongzhou Ren . Woods-Saxon-Gaussian potential and alpha-cluster structures ofalpha + closed shell nuclei. Chinese Physics C, 2018, 42(12): 124102. doi: 10.1088/1674-1137/42/12/124102
[6]	Yan-Wei Zhao , Shu-Qing Guo , Hong-Fei Zhang . α particle preformation and shell effect for heavy andsuperheavy nuclei. Chinese Physics C, 2018, 42(7): 074103. doi: 10.1088/1674-1137/42/7/074103
[7]	Xiao-Dong Sun , Xi-Jun Wu , Bo Zheng , Dong Xiang , Ping Guo , Xiao-Hua Li . Systematic study of α preformation probability of nuclear isomeric and ground states. Chinese Physics C, 2017, 41(1): 014102. doi: 10.1088/1674-1137/41/1/014102
[8]	Niloufar Zoghi-Foumani , Mohammad Reza , Shojaei Ali , Akbar Rajabi . A new non-microscopic study of cluster structures in light alpha-conjugate nuclei. Chinese Physics C, 2017, 41(1): 014104. doi: 10.1088/1674-1137/41/1/014104
[9]	Sergey Dubovichenko , Nassurlla Burtebayev , Albert Dzhazairov-Kakhramanov , Denis Zazulin , Zhambul Kerimkulov , Marzhan Nassurlla , Chingis Omarov , Alesya Tkachenko , Tatyana Shmygaleva , Stanislaw Kliczewski , Turlan Sadykov . New measurements and phase shift analysis of p¹⁶O elastic scattering at astrophysical energies. Chinese Physics C, 2017, 41(1): 014001. doi: 10.1088/1674-1137/41/1/014001
[10]	WU Qing , ZHOU Li-Juan , XIANG Qian-Fei , MA Wei-Xing . Multiquark cluster form factors in the relativistic harmonic oscillator model. Chinese Physics C, 2015, 39(1): 013102. doi: 10.1088/1674-1137/39/1/013102
[11]	LIU Lang , ZHAO Peng-Wei . α-cluster structure of ¹²C and ¹⁶O in the covariant density functional theory with a shell-model-like approach. Chinese Physics C, 2012, 36(9): 818-822. doi: 10.1088/1674-1137/36/9/004
[12]	YAN Xin-Shuai , WANG Jian-Song , YANG Yan-Yun . Structure of ⁶He in the frame of a cluster model. Chinese Physics C, 2011, 35(6): 550-554. doi: 10.1088/1674-1137/35/6/008
[13]	YUAN Cen-Xi , QI Chong , XU Fu-Rong . Shell-model studies of the N=14 and 16 shell closures in neutron-rich nuclei. Chinese Physics C, 2009, 33(S1): 55-57. doi: 10.1088/1674-1137/33/S1/018
[14]	ZHANG Lun-Dong , GUO Jian-You , FANG Xiang-Zheng . With the alpha-cluster model to explain the change of separating energy. Chinese Physics C, 2009, 33(S1): 140-141. doi: 10.1088/1674-1137/33/S1/044
[15]	Zhang Changhua , Gu Jinnan . Shell Model Calculation for Light Neutron-Rich Nuclei. Chinese Physics C, 1996, 20(S2): 165-170.
[16]	Ji Daren , Ying Heping , Chen Feng , Zhang Jianbo . Cluster Monte Carlo Algorithm for the Study of Quantum X-Y Model. Chinese Physics C, 1995, 19(S1): 61-68.
[17]	Wang Qun , Liu Ximing , Xie Qubing . Behaviors of Inelasticity and Cluster Number at High Energy in Interacting Parton Model. Chinese Physics C, 1995, 19(S3): 281-288.
[18]	Shen Pengnian , Shen Xiaoyan , Zhang Zongye , Yu Youwen . Equivalent Local N-Y Potentials with S=-1 in Quark Cluster Model. Chinese Physics C, 1993, 17(S4): 371-379.
[19]	Yang Jianjun , Zhu Yabo , Shen Hongqing , Shen Jianping , Li Guanglie . Parton Evolution Model and the EMC Effect. Chinese Physics C, 1991, 15(S2): 197-205.
[20]	Li Junqing , Liu Janye , Zhu Yongtai , Zhu Jieding . The Mass Drift Fluctuation and the Shell Effect in Heavy Ion Collisions. Chinese Physics C, 1988, 12(S2): 189-198.

Access

Get Citation

Rui-Wang, Rui-Yao Wang, Yi-Bin Qian and Zhong-Zhou Ren. Signatures of shell evolution in alpha decay across the N=126 shell closure[J]. Chinese Physics C, 2017, 41(6): 064103. doi: 10.1088/1674-1137/41/6/064103

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2017-01-25
Revised: 2017-02-22

Fund

Supported by National Natural Science Foundation of China (11375086, 11535004, 11605089, 11120101005), Natural Science Youth Fund of Jiangsu Province (BK20150762), Fundamental Research Funds for the Central Universities (30916011339), 973 National Major State Basic Research and Development Program of China (2013CB834400), and a Project Funded by the Priority Academic Programme Development of JiangSu Higher Education Institutions (PAPD)}

Article Metric

Article Views(1487)
PDF Downloads(56)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Signatures of shell evolution in alpha decay across the N=126 shell closure

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Signatures of shell evolution in alpha decay across the N=126 shell closure

Corresponding author: Yi-Bin Qian,

Corresponding author: Zhong-Zhou Ren,

HTML

目录