scholarly journals Recent Nuclear Structure Study through Large Scale Shell Model, from Light to Heavy Nuclei

Author(s):  
Cenxi Yuan
2012 ◽  
Vol 27 (13) ◽  
pp. 1250061 ◽  
Author(s):  
P. C. SRIVASTAVA

Shell model calculations for Ni, Cu and Zn isotopes by modifying fpg interaction due to Sorlin et al. [Phys. Rev. Lett. 88, 092501 (2002)] have been reported. In the present work, 28 two-body matrix elements of the earlier interaction have been modified. Present interaction is able to explain new experimental results for this region.


2012 ◽  
Vol 21 (01) ◽  
pp. 1250007 ◽  
Author(s):  
P. C. SRIVASTAVA ◽  
I. MEHROTRA

Yrast levels of Ni , Cu and Zn isotopes for 40 ≤ N ≤ 50 have been described by state-of-the-art shell model calculations with three recently available interactions using 56 Ni as a core in the f5/2pg9/2 model space. The results are unsatisfactory viz. large E(2+) for very neutron-rich nuclei, small B(E2) values in comparison to experimental values. These results indicate an importance of inclusion of πf7/2 and νd5/2 orbitals in the model space to reproduce collectivity in this region.


1969 ◽  
Vol 27 (2) ◽  
pp. 504-504 ◽  
Author(s):  
Toshiyuki Ishimatsu ◽  
Haruko Ohmura ◽  
Takashi Awaya ◽  
Takemi Nakagawa ◽  
Hikonojo Orihara ◽  
...  

1977 ◽  
Vol 42 (4) ◽  
pp. 1098-1105 ◽  
Author(s):  
Masaharu Hoshi ◽  
Mamoru Fujiwara ◽  
Yasukazu Yoshizawa

2018 ◽  
Vol 178 ◽  
pp. 02015
Author(s):  
Chong Qi

In this contribution I present systematic calculations on the spectroscopy and electromagnetic transition properties of intermediate-mass and heavy nuclei around 100Sn and 208Pb. We employed the large-scale configuration interaction shell model approach with realistic interactions. Those nuclei are the longest isotopic chains that can be studied by the nuclear shell model. I will show that the yrast spectra of Te isotopes show a vibrational-like equally spaced pattern but the few known E2 transitions show rotational-like behaviour. These kinds of abnormal collective behaviors cannot be reproduced by standard collective models and provide excellent background to study the competition of single-particle and various collective degrees of freedom. Moreover, the calculated B(E2) values for neutron-deficient and heavier Te isotopes show contrasting different behaviours along the yrast line, which may be related to the enhanced neutron-proton correlation when approaching N=50. The deviations between theory and experiment concerning the energies and E2 transition properties of low-lying 0+ and 2+ excited states and isomeric states in those nuclei may provide a constraint on our understanding of nuclear deformation and intruder configuration in that region.


1970 ◽  
Vol 1 (1) ◽  
pp. 346-349 ◽  
Author(s):  
James J. Kent ◽  
C. Fred Moore ◽  
Charles E. Watson

2018 ◽  
Vol 178 ◽  
pp. 02019
Author(s):  
He Wang ◽  
Nori Aoi ◽  
Satoshi Takeuchi ◽  
Masafumi Matsushita ◽  
Pieter Doornenbal ◽  
...  

The neutron-rich nuclei 136Sn and 132Cd have been studied in the purpose of nuclear structure for the nuclei beyond the doubly-magic nucleus 132Sn. The 2+1 → 0+ gs transitions were identified for these two nuclei using in-beam γ-ray spectroscopy in coincidence with one- and two-proton removal reactions, respectively, at the RIKEN Radioactive Isotope Beam Factory. The 2+ 1 state in 136Sn is found to be similar to that for 134Sn indicating the seniority scheme may also hold for the heavy tin isotopes beyond N = 82. For 132Cd, the 2+ 1 state provides the first spectroscopic information in the even-even nuclei locating in the region “southeast” of 132Sn and the result is discussed in terms of proton-neutron configuration mixing. In both these two nuclei, it was found that the valence neutrons play an essential role in their low-lying excitations.


1975 ◽  
Vol 243 (2) ◽  
pp. 309-316 ◽  
Author(s):  
E. Schoeters ◽  
R. Geerts ◽  
R.E. Silverans ◽  
L. Vanneste

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