NEW EFFECTIVE INTERACTIONS FOR THE 0F1P SHELL

被引：348

作者：

RICHTER, WA

VANDERMERWE, MG

JULIES, RE

BROWN, BA

机构：

[1] MICHIGAN STATE UNIV, DEPT PHYS & ASTRON, E LANSING, MI 48824 USA

[2] UNIV WESTERN CAPE, DEPT PHYS, BELLVILLE, SOUTH AFRICA

[3] MICHIGAN STATE UNIV, NATL SUPERCONDUCTING CYCLOTRON LAB, E LANSING, MI 48824 USA

来源：

NUCLEAR PHYSICS A | 1991年 / 523卷 / 02期

关键词：

D O I：

10.1016/0375-9474(91)90007-S

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：

New two-body interactions are derived for nuclei in the lower part of the 0f1p shell by fitting semi-empirical potential forms and two-body matrix elements to 61 binding and excitation energy data in the mass range 41 to 49. The shell-model calculations assumed a Ca-40 core and valence nucleons distributed over the full fp space. Care was taken to exclude intruder states from the selected data set. The r.m.s. deviations between fitted and experimental energies of 176 keV have been achieved by varying only 6 two-body parameters and 4 single-particle energies in the method utilizing a modified surface one-boson exchange potential (MSOBEP) form. In an alternative fit an r.m.s. deviation of 163 keV has been obtained by fitting 12 linear combinations of single-particle energies and two-body matrix elements, while constraining the remaining two-body matrix elements to values of a G-matrix interaction. The results are comparable in quality to recent similar fits in the 1s0d shell. The effects of a mass dependence of the two-body matrix elements are also investigated. An excellent reproduction of ground-state magnetic moments and quadrupole moments is obtained with the new interactions.

引用

页码：325 / 353

页数：29

共 42 条

[1] SHELL-MODEL STUDY OF CALCIUM ISOTOPES (A=42-48) USING A PAIRING PLUS SURFACE-TENSOR INTERACTION [J].

BANERJEE, D ;

OBERLECHNER, G .

PHYSICAL REVIEW C, 1973, 7 (06) :2437-2452

[2] ENERGY-LEVEL STRUCTURE OF CA41 FROM CA40(D,P)CA41 REACTION [J].

BELOTE, TA ;

SPERDUTO, A ;

BUECHNER, WW .

PHYSICAL REVIEW, 1965, 139 (1B) :B80-&

[3] NUCLEAR-CHARGE DISTRIBUTION OF 8 CA-NUCLEI BY LASER SPECTROSCOPY [J].

BERGMANN, E ;

BOPP, P ;

DORSCH, C ;

KOWALSKI, J ;

TRAGER, F ;

PUTLITZ, GZ .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1980, 294 (04) :319-322

[4] SEMI-EMPIRICAL EFFECTIVE INTERACTIONS FOR THE 1S-0D SHELL [J].

BROWN, BA ;

RICHTER, WA ;

JULIES, RE ;

WILDENTHAL, BH .

ANNALS OF PHYSICS, 1988, 182 (02) :191-236

[5]

BROWN BA, 1988, ANNU REV NUCL PART S, V38, P29

[6]

BROWN BA, 1987, P INT NUCLEAR PHYSIC, V2, P119

[7]

BRUSSAARD PJ, 1977, SHELL MODEL APPLICAT

[8]

Burrows T. W., 1986, Nuclear Data Sheets, V48, P1, DOI 10.1016/S0090-3752(86)80101-6

[9]

Burrows T. W., 1983, Nuclear Data Sheets, V40, P149, DOI 10.1016/S0090-3752(83)80083-0

[10]

Chung W., 1976, THESIS MICHIGAN STAT

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