High-spin structure of neutron-rich Dy isotopes

被引：1

作者：

Ansari, A ^{[1
]}

Yadav, HL

Kaushik, M

Jakhar, UR

机构：

[1] Inst Phys, Bhubaneswar 751005, Orissa, India

[2] Univ Rajasthan, Dept Phys, Jaipur 302004, Rajasthan, India

来源：

PRAMANA-JOURNAL OF PHYSICS | 2003年 / 60卷 / 06期

关键词：

neutron-rich Dy isotopes; high-spin states; g-factors; cranked HFB theory;

D O I：

10.1007/BF02704284

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In view of recent experimental progress on production and spectroscopy of neutron-rich isotopes of Dy with mass number A = 166 and 168, we have made theoretical investigations on the structure of high spin states of Dy164-170 isotopes in the cranked Hartree-Fock-Bogoliubov (CHFB) theory employing a pairing+quadrupole+hexadecapole model interaction. With the increase of neutron number the rotation alignment of the proton orbitals dominates the structure at high spins, which is clearly reflected in the spin dependence of the rotational g-factors. A particularly striking feature is the difference in the spin-dependent properties of Dy-166 as compared to that of Dy-164.

引用

页码：1171 / 1178

页数：8

共 17 条

[1] GYROMAGNETIC RATIOS OF COLLECTIVE STATES OF ER-166 [J].

ALZNER, A ;

BODENSTEDT, E ;

GEMUNDEN, B ;

VANDENHOFF, J ;

REIF, H .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1985, 322 (03) :467-478

[2] G FACTORS OF HIGH-SPIN STATES IN DY-154 [J].

ANSARI, A .

PHYSICAL REVIEW C, 1994, 49 (05) :2809-2811

[3] MAGNETIC-MOMENT AND HIGH-SPIN STRUCTURE OF SOME RARE-EARTH NUCLEI [J].

ANSARI, A ;

WUST, E ;

MUHLHANS, K .

NUCLEAR PHYSICS A, 1984, 415 (02) :215-229

[4] β-decay half-lives of new neutron-rich isotopes 167,168Tb and levels in 167,168Dy [J].

Asai, M ;

Ichikawa, S ;

Tsukada, K ;

Sakama, M ;

Shibata, M ;

Kojima, T ;

Osa, A ;

Nishinaka, I ;

Nagame, Y ;

Kawade, K ;

Tachibana, T .

PHYSICAL REVIEW C, 1999, 59 (06) :3060-3065

[5]

BARANGER M, 1968, NUCL PHYS A, V110, P529

[6] g-factors in the ground state and in the γ-bands in 160,162,164Dy [J].

Brandolini, F ;

De Poli, M ;

Pavan, P ;

Ribas, RV ;

Bazzacco, D ;

Rossi-Alvarez, CR .

EUROPEAN PHYSICAL JOURNAL A, 1999, 6 (02) :149-155

[7] CRANKED HARTREE-FOCK-BOGOLIUBOV CALCULATIONS FOR DY ISOTOPES [J].

CESCATO, ML ;

SUN, Y ;

RING, P .

NUCLEAR PHYSICS A, 1991, 533 (03) :455-475

[8] MEASURED GYROMAGNETIC RATIOS OF INDIVIDUAL EXCITED-STATES IN THE GROUND-BAND AND GAMMA-BAND OF ER-166 [J].

DORAN, CE ;

BOLOTIN, HH ;

STUCHBERY, AE ;

BYRNE, AP .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1986, 325 (03) :285-292

[9] Identification of excited states in 167Os and 168Os:: shape coexistence at extreme neutron deficiency [J].

Joss, DT ;

King, SL ;

Page, RD ;

Simpson, J ;

Keenan, A ;

Amzal, N ;

Bäck, T ;

Bentley, MA ;

Cederwall, B ;

Cocks, JFC ;

Cullen, DM ;

Greenlees, PT ;

Helariutta, K ;

Jones, PM ;

Julin, R ;

Juutinen, S ;

Kankaanpää, H ;

Kettunen, H ;

Kuusiniemi, P ;

Leino, M ;

Muikku, M ;

Savelius, A ;

Uusitalo, J ;

Williams, SJ .

NUCLEAR PHYSICS A, 2001, 689 (3-4) :631-654

[10] Rare-earth nuclei: Radii, isotope-shifts and deformation properties in the relativistic mean-field theory [J].

Lalazissis, GA ;

Sharma, MM ;

Ring, P .

NUCLEAR PHYSICS A, 1996, 597 (01) :35-65

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