Rotational properties of 252,253,254No:: influence of pairing correlations

被引：88

作者：

Duguet, T ^{[1
]}

Bonche, P

Heenen, PH

机构：

[1] CEA Saclay, Serv Phys Theor, F-91191 Gif Sur Yvette, France

[2] Free Univ Brussels, Serv Phys Nucl Theor, B-1050 Brussels, Belgium

来源：

NUCLEAR PHYSICS A | 2001年 / 679卷 / 3-4期

关键词：

mean-field; pairing; moment of inertia; fission barrier;

D O I：

10.1016/S0375-9474(00)00370-5

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Rotational bands of No-252,No-253,No-254 and the fission barriers of No-254 at spin 0 h and 20 (h) over bar are calculated with the Hartree-Fock-Bogolyubov theory and the Lipkin-Nogami approximate particle number projection. The SLy4 Skyrme force is used in the particle-hole channel. A zero-range force with and without density-dependence is used in the particle-particle channel. The experimental ground state deformation (Q(20) = 32.8 b) is reproduced as well as the increase of the dynamical moment of inertia with frequency both for No-252 and No-254. The rotational band of No-253 is also calculated. Fission barriers of No-254 at spin 0 h and 20 h show the robustness of shell-corrections against rotation in these heavy nuclei. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：427 / 440

页数：14

共 26 条

[1] The 1995 update to the atomic mass evaluation [J].

Audi, G ;

Wapstra, AH .

NUCLEAR PHYSICS A, 1995, 595 (04) :409-480

[2]

AUDI G, 1988, ATOM DATA NUCT DATA, V39, P281

[3]

Berger J. F., 1984, Nuclear Physics A, VA428, P23, DOI 10.1016/0375-9474(84)90240-9

[4]

BERGER JF, 1989, NUCL PHYS A, V502, pC85, DOI 10.1016/0375-9474(89)90656-8

[5] SELF-CONSISTENT STUDY OF TRIAXIAL DEFORMATIONS - APPLICATION TO THE ISOTOPES OF KR, SR, ZR AND MO [J].

BONCHE, P ;

FLOCARD, H ;

HEENEN, PH ;

KRIEGER, SJ ;

WEISS, MS .

NUCLEAR PHYSICS A, 1985, 443 (01) :39-63

[6] FUNNY HILLS - SHELL-CORRECTION APPROACH TO NUCLEAR SHELL EFFECTS AND ITS APPLICATIONS TO FISSION PROCESS [J].

BRACK, M ;

JENSEN, AS ;

PAULI, HC ;

STRUTINSKY, VM ;

WONG, CY ;

DAMGAARD, J .

REVIEWS OF MODERN PHYSICS, 1972, 44 (02) :320-+

[7] A Skyrme parametrization from subnuclear to neutron star densities [J].

Chabanat, E ;

Bonche, P ;

Haensel, P ;

Meyer, J ;

Schaeffer, R .

NUCLEAR PHYSICS A, 1997, 627 (04) :710-746

[8]

Cwiok S, 1996, NUCL PHYS A, V611, P211, DOI 10.1016/S0375-9474(96)00337-5

[9] Structure of odd-N superheavy elements [J].

Cwiok, S ;

Nazarewicz, W ;

Heenen, PH .

PHYSICAL REVIEW LETTERS, 1999, 83 (06) :1108-1111

[10]

CWIOK S, COMMUNICATION

← 1 2 3 →