New Magicity within the Relativistic Hartree-Fock-Bogoliubov Approach

LI Jiajie; LONG Wenhui

doi:10.11804/NuclPhysRev.34.01.051

Recent applications of the relativistic Hartree-Fock-Bogoliubov (RHFB) approach in exploring the new magicities under extreme conditions are presented for the superheavy elements with the limits of mass and charge and for the exotic nuclei with extreme neutron-to-proton ratios. It is found that the emergence of new magic shells in superheavy region is tightly related to the restoration and violation of pseudo-spin symmetry, respectively for the neutron and proton ones, in which the model deviations are indicated and discussed. In medium-heavy exotic nuclei, the occurrence of new magicity N = 32, 34 in Ca isotopes is well reproduced by the RHFB approach, in which the isovector Lorentz tensor couplings are found to play an essential role. The results exemplify that the RHFB approach, which considers the exchange (Fock) terms explicitly, furnishes a new theoretical instrument for advancing relativistic nuclear mean-field approaches.

New Magicity within the Relativistic Hartree-Fock-Bogoliubov Approach

School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

Funds: National Natural Science Foundation of China(11375076, 11675065); Specialized Research Fund for Doctoral Program of Higher Education (20130211110005)

Received Date: 2016-09-18

Rev Recd Date: 2016-10-03

Publish Date: 2017-03-20

Key words:

Abstract: Recent applications of the relativistic Hartree-Fock-Bogoliubov (RHFB) approach in exploring the new magicities under extreme conditions are presented for the superheavy elements with the limits of mass and charge and for the exotic nuclei with extreme neutron-to-proton ratios. It is found that the emergence of new magic shells in superheavy region is tightly related to the restoration and violation of pseudo-spin symmetry, respectively for the neutron and proton ones, in which the model deviations are indicated and discussed. In medium-heavy exotic nuclei, the occurrence of new magicity N = 32, 34 in Ca isotopes is well reproduced by the RHFB approach, in which the isovector Lorentz tensor couplings are found to play an essential role. The results exemplify that the RHFB approach, which considers the exchange (Fock) terms explicitly, furnishes a new theoretical instrument for advancing relativistic nuclear mean-field approaches.

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Reference (19)

[1]	LONGWH, RING P, VAN GIAI N, et al. Phys Rev C, 2010, 81: 024308.
[2]	BENDER M, HEENEN P H, REINHARD P G. Rev Mod Phys, 2003, 75: 121.
[3]	VRETENAR D, AFANASJEV A V, LALAZISSIS G A, et al. Phys Rep, 2005, 409: 101.
[4]	MENG J, TOKI H, ZHOU S G, et al. Prog Part Nucl Phys, 2006, 57: 470.
[5]	LONG W, SAGAWA H, MENG J, et al. Europhys Lett, 2008, 82: 12001.
[6]	JIANG L J, YANG S, SUN B Y, et al. Phys Rev C, 2015, 91: 034326.
[7]	LI J J, MARGUERON J, LONG W H, et al. Phys Lett B, 2016, 753: 97.
[8]	LONG W H, SAGAWA H, VAN GIAI N, et al. Phys Rev C, 2007, 76: 034314.
[9]	LONG W H, VAN GIAI N, MENG J. Phys Lett B, 2006, 640: 150.
[10]	BERGER J F, GIROD M, GOGNY D. Nucl Phys A, 1984, 428: 23.
[11]	ZHOU S G, MENG J, RING P. Phys Rev C, 2003, 68: 034323.
[12]	LI J J, LONG W H, MARGUERON J, et al. Phys Lett B, 2014, 732: 169.
[13]	LIANG H, MENG J, ZHOU S G. Phys Rep, 2015, 570: 1.
[14]	LI J J, LONG W H, SONG J L, et al. Phys Rev C, 2016, 93: 054312.
[15]	GRAWE H, LANGANKE K, MARTÍNEZ-PINEDO G. Rep Prog Phys, 2007, 70: 1525.
[16]	NAKADA H, SUGIURA K, MARGUERON J. Phys Rev C, 2013, 87: 067305.
[17]	GADE A, JANSSENS R V F, BAZINPHYS D, et al. Rev C, 2006, 74: 021302.
[18]	WIENHOLTZ F, BECK D, BLAUM K, et al. Nature, 2013, 498: 346.
[19]	STEPPENBECK D, TAKEUCHI S, AOI N, et al. Nature, 2013, 502: 207.

New Magicity within the Relativistic Hartree-Fock-Bogoliubov Approach

doi: 10.11804/NuclPhysRev.34.01.051

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