Shell evolution at N=20 in the constrained relativistic mean field approach

SUN Bao-Hua; LI Jian

doi:10.1088/1674-1137/32/11/007

Chinese Physics C> 2008, Vol. 32> Issue(11) : 882-885 DOI: 10.1088/1674-1137/32/11/007

Shell evolution at N=20 in the constrained relativistic mean field approach

SUN Bao-Hua ^, ,
LI Jian

Abstract
HTML
Reference
Related

PDF

Abstract：
The shell evolution at N=20, a disappearing neutron magic number observed experimentally in very neutron-rich nuclides, is investigated in the constrained relativistic mean field (RMF) theory. The trend of the shell closure observed experimentally towards the neutron drip-line can be reproduced. The predicted two-neutron separation energies, neutron shell gap energies and deformation parameters of ground states are shown as well. These results are compared with the recent Hartree-Fock-Bogliubov (HFB-14) model and the available experimental data. The perspective towards a better understanding of the shell evolution is discussed.

References

[1]

. Ring P, Schuck P. The Nuclear Many-Body Problem.Berlin: Springer, 19802. Audi G, Wapstra A H, Thibault C. Nucl. Phys. A, 2003,729: 3373. Penionzhkevich Yu E. Hyper ne Inter., 2006, 171: 1574. Ozawa A et al. Phys. Rev. Lett., 2000, 84: 54935. Sarazin F et al. Phys. Rev. Lett., 2006, 84: 50626. Warburton E K, Becker J A, Brown B A. Phys. Rev. C,1990, 41: 11477. Goriely S, Samyn M, Pearson J M. Phys. Rev. C, 2007, 75:0643128. MENG J, Ring P. Phys. Rev. Lett., 1996, 77: 39639. MENG J, Ring P. Phys. Rev. Lett., 1998, 80: 46010. ZHOU S G, MENG J, Ring P. Phys. Rev. Lett., 2003, 91:26250111. Bender M, Heenen P H, Reinhard P G. Rev. Mod. Phys.,2003, 75: 12112. MENG J et al. Prog. Part. Nucl. Phys., 2006, 57: 47013. LONG W H et al. Phys. Rev. C, 2004, 69: 03431914. Gambhir Y K, Ring P, Thimet A. Ann. Phys. (NY), 1990,194: 13215. Flocard H et al. Nucl. Phys. A, 1973, 203: 43316. Raman S et al. At. Data. Nucl. Data Tables, 2001, 78: 117. Yanagisawa Y et al. Phys. Lett. B, 2003, 24: 8418. Robríguez-Guzmán R, Egido J L, Robledo L M. Phys. Lett.B, 2000, 474: 15

[1]	Ru-You Zheng , Xiang-Xiang Sun , Guo-fang Shen , Li-Sheng Geng . Evolution of N = 20, 28, 50 shell closures in the 20 ≤ Z ≤ 30 region in deformed relativistic Hartree-Bogoliubov theory in continuum. Chinese Physics C, 2024, 48(1): 014107. doi: 10.1088/1674-1137/ad0bf2
[2]	Ting-Ting Sun , Cheng-Jun Xia , Shi-Sheng Zhang , M. S. Smith . Massive neutron stars and Λ-hypernuclei in relativistic mean field models. Chinese Physics C, 2018, 42(2): 025101. doi: 10.1088/1674-1137/42/2/025101
[3]	Xiao-Bao Wang , Guo-Xiang Dong , Hua-Lei Wang , Cen-Xi Yuan , Yong-Jing Chen , Ya Tu . Many-body correlations in shell model effective interactions derived by ab initio methods and the V_low-k approach. Chinese Physics C, 2018, 42(11): 114103. doi: 10.1088/1674-1137/42/11/114103
[4]	Rong An , Lisheng Geng , Shisheng Zhang , Lang Liu . Particle number conserving BCS approach in the relativistic mean field model and its application to ^32-74Ca. Chinese Physics C, 2018, 42(11): 114101. doi: 10.1088/1674-1137/42/11/114101
[5]	Fang-Yong Dong , Bao-Xi Sun , Jing-Long Pang . The Λ(1405) state in a chiral unitary approach with off-shell corrections to dimensional regularized loop functions. Chinese Physics C, 2017, 41(7): 074108. doi: 10.1088/1674-1137/41/7/074108
[6]	Rui-Wang , Rui-Yao Wang , Yi-Bin Qian , Zhong-Zhou Ren . Signatures of shell evolution in alpha decay across the N=126 shell closure. Chinese Physics C, 2017, 41(6): 064103. doi: 10.1088/1674-1137/41/6/064103
[7]	Yang Zhong , Chun-Bin Yang , Xu Cai , Sheng-Qin Feng . Chiral electric field in relativistic heavy-ion collisions at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider. Chinese Physics C, 2016, 40(8): 084103. doi: 10.1088/1674-1137/40/8/084103
[8]	Wu-Ji Sun , Hai-Dan Xu , Jian Li , Yong-Hao Liu , Ke-Yan Ma , Dong Yang , Jing-Bing Lu , Ying-Jun Ma . Antimagnetic rotation in ^108,110In with tilted axis cranking relativistic mean-field approach. Chinese Physics C, 2016, 40(8): 084101. doi: 10.1088/1674-1137/40/8/084101
[9]	Xue-Wei Xia . Evolution of N=28 shell closure in relativistic continuum Hartree-Bogoliubov theory. Chinese Physics C, 2016, 40(7): 074101. doi: 10.1088/1674-1137/40/7/074101
[10]	Hong-Bo Bai , Zhen-Hua Zhang , Xiao-Wei Li . Investigation of the Mg isotopes using the shell-model-like approach in relativistic mean field theory. Chinese Physics C, 2016, 40(11): 114101. doi: 10.1088/1674-1137/40/11/114101
[11]	FAN Guang-Wei , DONG Tie-Kuang , D. Nishimura . Nonlinear relativistic mean-field theory studies on He isotopes. Chinese Physics C, 2014, 38(12): 124102. doi: 10.1088/1674-1137/38/12/124102
[12]	Mohsen Fathi . A dynamical approach to the exterior geometry of a perfect fluid as a relativistic star. Chinese Physics C, 2013, 37(2): 025101. doi: 10.1088/1674-1137/37/2/025101
[13]	D. Rozpedzik , J. Golak . Low energy electromagnetic processes based on the chiral effective field theory approach. Chinese Physics C, 2010, 34(9): 1393-1395. doi: 10.1088/1674-1137/34/9/051
[14]	ZHANG Wei , LI Zhi-Pan , ZHANG Shuang-Quan . Octupole deformation for Ba isotopes in a reflection-asymmetric relativistic mean-field approach. Chinese Physics C, 2010, 34(8): 1094-1099. doi: 10.1088/1674-1137/34/8/011
[15]	MA Qiao-Sheng , FAN Zhi-Kai , ZHOU Chuan-Ming . Simulation of the relativistic backward wave oscillator with a sinusoidal guiding magnetic field. Chinese Physics C, 2009, 33(3): 232-235. doi: 10.1088/1674-1137/33/3/013
[16]	PENG Jing , XING Li-Feng , MENG Jie . Shears mechanism in two-dimensional cranking relativistic mean field approach. Chinese Physics C, 2009, 33(S1): 15-17. doi: 10.1088/1674-1137/33/S1/005
[17]	LI Jian , YAO Jiang-Ming , MENG Jie . Deformation constrained relativistic mean-field approach with fixed configuration and time-odd component. Chinese Physics C, 2009, 33(S1): 98-100. doi: 10.1088/1674-1137/33/S1/032
[18]	GUO Jian-You , SHENG Zong-Qiang , FANG Xiang-Zheng . A systematic study of the superdeformation of Pb isotopes with relativistic mean field theory. Chinese Physics C, 2008, 32(11): 886-891. doi: 10.1088/1674-1137/32/11/008
[19]	Shen Yaosong , Ren Zhongzhou . Relativistic Mean-field Calculation on Λ Hypernuclei. Chinese Physics C, 1997, 21(S4): 47-54.
[20]	Chen Baoqiu , Ma Zhongyu . Description of the Properties of Nuclei Far From the β Stability Line in the Relativistic Mean Field Theory. Chinese Physics C, 1994, 18(Z1): 87-94.

Access

Get Citation

SUN Bao-Hua and LI Jian. Shell evolution at N=20 in the constrained relativistic mean field approach[J]. Chinese Physics C, 2008, 32(11): 882-885. doi: 10.1088/1674-1137/32/11/007

SUN Bao-Hua and LI Jian. Shell evolution at N=20 in the constrained relativistic mean field approach[J]. Chinese Physics C, 2008, 32(11): 882-885. doi: 10.1088/1674-1137/32/11/007 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2008-04-25
Revised: 2008-06-18

Article Metric

Article Views(3238)
PDF Downloads(691)
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

Shell evolution at N=20 in the constrained relativistic mean field approach

Corresponding author: SUN Bao-Hua,

Received Date: 2008-04-25

Accepted Date: 2008-06-18

Available Online: 2008-11-05

Abstract:

The shell evolution at N=20, a disappearing neutron magic number observed experimentally in very neutron-rich nuclides, is investigated in the constrained relativistic mean field (RMF) theory. The trend of the shell closure observed experimentally towards the neutron drip-line can be reproduced. The predicted two-neutron separation energies, neutron shell gap energies and deformation parameters of ground states are shown as well. These results are compared with the recent Hartree-Fock-Bogliubov (HFB-14) model and the available experimental data. The perspective towards a better understanding of the shell evolution is discussed.

HTML

Reference (1)

Shell evolution at N=20 in the constrained relativistic mean field approach

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article