Projected shell model description of high spin states inCe124

2005 ◽  
Vol 72 (6) ◽  
Author(s):  
Rani Devi ◽  
B. D. Sehgal ◽  
S. K. Khosa ◽  
J. A. Sheikh
Keyword(s):  
Shell Model ◽  
High Spin ◽  
Model Description ◽  
Spin States ◽  
Projected Shell Model ◽  
High Spin States

Projected shell model description for high-spin states in neutron-rich Fe isotopes

2009 ◽  
Vol 80 (5) ◽  
Author(s):  
Yang Sun ◽  
Ying-Chun Yang ◽  
Hong-Liang Liu ◽  
Kazunari Kaneko ◽  
Munetake Hasegawa ◽  
...  
Keyword(s):  
Shell Model ◽  
High Spin ◽  
Model Description ◽  
Spin States ◽  
Projected Shell Model ◽  
High Spin States ◽  
Fe Isotopes

scholarly journals High-spin states inRu90and the projected shell model description

2004 ◽  
Vol 69 (6) ◽  
Author(s):  
D. Bucurescu ◽  
N. Mărginean ◽  
C. Rossi Alvarez ◽  
Y. Sun ◽  
C. A. Ur ◽  
...  
Keyword(s):  
Shell Model ◽  
High Spin ◽  
Model Description ◽  
Spin States ◽  
Projected Shell Model ◽  
High Spin States

PROJECTED SHELL MODEL AND HIGH-SPIN SPECTROSCOPY

1995 ◽  
Vol 04 (04) ◽  
pp. 637-785 ◽  
Author(s):  
KENJI HARA ◽  
YANG SUN
Keyword(s):  
Shell Model ◽  
High Spin ◽  
Computing Time ◽  
Technical Information ◽  
Quantum Mechanical ◽  
Magic Numbers ◽  
Spin States ◽  
Axially Symmetric ◽  
Projected Shell Model ◽  
High Spin States

Most of the nuclei in the nuclear chart are deformed except for those in the vicinity of the magic numbers. It is difficult to treat such nuclei within the framework of the standard (spherical) shell model. On the other hand, the necessity for a proper quantum mechanical treatment of high-spin states has been steadily growing ever since modern experimental techniques made it possible to measure the fine details of the high-spin states of heavy nuclei. The present article reviews an approach based on the angular momentum projection technique which was initiated in the late seventies for the purpose of carrying out shell model configuration mixing calculations efficiently. A large number of examples is presented with an emphasis on the physical interpretation of the numerical results. Computing time for the whole spectrum up to spin ≈ 40 of an axially symmetric rare-earth nucleus takes only a few minutes on a Mainframe, showing the efficiency of the method. Most of the present calculations were carried out on a Workstation, but computation on a modern PC also presents no problem, so that one can enjoy a genuine quantum mechanical analysis of high-spin data using a facility available everywhere. Detailed technical information which may be useful for programming purposes is given in an Appendix.

scholarly journals High-spin states in Cs133 and the shell model description

2017 ◽  
Vol 95 (6) ◽  
Author(s):  
S. Biswas ◽  
R. Palit ◽  
J. Sethi ◽  
S. Saha ◽  
A. Raghav ◽  
...  
Keyword(s):  
Shell Model ◽  
High Spin ◽  
Model Description ◽  
Spin States ◽  
High Spin States

scholarly journals Different seniority states of $^{119-126}$Sn isotopes: shell-model description

2019 ◽  
Vol 2019 (10) ◽  
Author(s):  
Praveen C Srivastava ◽  
Bharti Bhoy ◽  
M J Ermamatov
Keyword(s):  
Experimental Data ◽  
Shell Model ◽  
High Spin ◽  
Isomeric State ◽  
Model Description ◽  
Spin States ◽  
Model Calculations ◽  
Successive Pair ◽  
High Spin States ◽  
Isomeric States

Abstract In the present work, available experimental data up to high-spin states of $^{119-126}$Sn isotopes with different seniority ($v$), including $v = 4$, 5, 6, and 7, are interpreted with the shell model, by performing shell-model calculations in the 50–82 valence shell composed of $1g_{7/2}$, $2d_{5/2}$, $1h_{11/2}$, $3s_{1/2}$, and $2d_{3/2}$ orbitals. The results are compared with the available experimental data. These states are described in terms of broken neutron pairs occupying the $h_{11/2}$ orbital. Possible configurations of seniority isomers in these nuclei are discussed. The breaking of three neutron pairs is responsible for generating high-spin states. The isomeric states $5^-$, $7^-$, $10^+$, and $15^-$ of even Sn isotopes, and isomeric states $19/2^+$, $23/2^+$, $27/2^-$, and $35/2^+$ of odd Sn isotopes, are described in terms of different seniority. For even Sn isotopes, the isomeric states $5^-$, $7^-$, and $10^+$ are due to seniority $v = 2$; the isomeric state $15^-$ is due to seniority $v = 4$, and, in the case of odd Sn isotopes, the isomeric states $19/2^+$, $23/2^+$, and $27/2^-$ are due to seniority $v = 3$, and the isomeric state $35/2^+$ in $^{123}$Sn is due to seniority $v = 5$. These are maximally aligned spins, which involve successive pair breakings in the $\nu (h_{11/2})$ orbital.

High spin states and shell model description of the neutron deficient nucleiRu90andRu91

1994 ◽  
Vol 49 (4) ◽  
pp. 1896-1903 ◽  
Author(s):  
J. Heese ◽  
H. Grawe ◽  
K. H. Maier ◽  
R. Schubart ◽  
F. Cristancho ◽  
...  
Keyword(s):  
Shell Model ◽  
High Spin ◽  
Model Description ◽  
Spin States ◽  
High Spin States

High-spin states in89Nb,88Zr and88Nb with a shell-model description of theN=48 andN=47 nuclei

1985 ◽  
Vol 321 (3) ◽  
pp. 485-498 ◽  
Author(s):  
K. Oxorn ◽  
S. K. Mark ◽  
J. E. Kitching ◽  
S. S. M. Wong
Keyword(s):  
Shell Model ◽  
High Spin ◽  
Model Description ◽  
Spin States ◽  
High Spin States

scholarly journals High-spin states and lifetimes in S33 and shell-model interpretation in the sd−fp space

2017 ◽  
Vol 96 (2) ◽  
Author(s):  
S. Aydin ◽  
M. Ionescu-Bujor ◽  
G. Tz. Gavrilov ◽  
B. I. Dimitrov ◽  
S. M. Lenzi ◽  
...  
Keyword(s):  
Shell Model ◽  
High Spin ◽  
Spin States ◽  
High Spin States ◽  
Model Interpretation

SHAPE EVOLUTION OF HIGHLY DEFORMED 75Kr AND PROJECTED SHELL MODEL DESCRIPTION

2010 ◽  
Vol 19 (08n09) ◽  
pp. 1754-1762 ◽  
Author(s):  
YING-CHUN YANG ◽  
YANG SUN ◽  
T. TRIVEDI ◽  
R. PALIT ◽  
J. A. SHEIKH
Keyword(s):  
Shell Model ◽  
Negative Parity ◽  
Model Description ◽  
Shape Evolution ◽  
Quadrupole Moments ◽  
Projected Shell Model ◽  
Model Calculations ◽  
High Spin States ◽  
Parity Band ◽  
Insight Into

A study of recently-measured high spin states of 75 Kr is carried out by using the Projected Shell Model. Calculations are performed up to spin I = 33/2 for the positive parity band and I = 27/2 for the negative parity band. Irregularities found in moment of inertia and in the deduced transition quadrupole moments Q t of the two bands are discussed in terms of the alignment of g 9/2 protons. Our study provides an insight into the shape evolution of the well-deformed nucleus 75 kr .

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