scholarly journals Consistent large-scale shell-model analysis of the two-neutrino ββ and single β branchings in 48Ca and 96Zr

2020 ◽  
Vol 802 ◽  
pp. 135192 ◽  
Author(s):  
Joel Kostensalo ◽  
Jouni Suhonen
Keyword(s):  
Shell Model ◽  
Large Scale ◽  
Model Analysis

scholarly journals Large-Scale Shell-Model Analysis of the NeutrinolessββDecay ofCa48

2016 ◽  
Vol 116 (11) ◽  
Author(s):  
Y. Iwata ◽  
N. Shimizu ◽  
T. Otsuka ◽  
Y. Utsuno ◽  
J. Menéndez ◽  
...  
Keyword(s):  
Shell Model ◽  
Large Scale ◽  
Model Analysis

scholarly journals Erratum: Large-Scale Shell-Model Analysis of the Neutrinoless ββ Decay of Ca48 [Phys. Rev. Lett. 116 , 112502 (2016)]

2016 ◽  
Vol 117 (17) ◽  
Author(s):  
Y. Iwata ◽  
N. Shimizu ◽  
T. Otsuka ◽  
Y. Utsuno ◽  
J. Menéndez ◽  
...  
Keyword(s):  
Shell Model ◽  
Large Scale ◽  
Model Analysis

scholarly journals Study of nuclei around Z = 28 by large-scale shell model calculations

2013 ◽  
Vol 445 ◽  
pp. 012028 ◽  
Author(s):  
Y Tsunoda ◽  
T Otsuka ◽  
N Shimizu ◽  
M Honma ◽  
Y Utsuno
Keyword(s):  
Shell Model ◽  
Large Scale ◽  
Model Calculations

scholarly journals Shell model description of heavy nuclei and abnormal collective motions

2018 ◽  
Vol 178 ◽  
pp. 02015
Author(s):  
Chong Qi
Keyword(s):  
Shell Model ◽  
Degrees Of Freedom ◽  
Large Scale ◽  
Model Description ◽  
Heavy Nuclei ◽  
Collective Models ◽  
Collective Behaviors ◽  
Electromagnetic Transition ◽  
Nuclear Shell ◽  
Model Approach

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.

scholarly journals Nuclear spectra in a large scale shell model approach

2011 ◽  
Vol 336 ◽  
pp. 012009
Author(s):  
D Bianco ◽  
F Andreozzi ◽  
N Lo Iudice ◽  
A Porrino ◽  
F Knapp
Keyword(s):  
Shell Model ◽  
Large Scale ◽  
Model Approach

scholarly journals Large Scale Shell Model Calculations of the Negative-Parity States Structure in 24Mg Nucleus

2021 ◽  
Vol 66 (4) ◽  
pp. 293
Author(s):  
A.A. Al-Sammarraie ◽  
F.A. Ahmed ◽  
A.A. Okhunov
Keyword(s):  
Shell Model ◽  
Large Scale ◽  
Transition Probabilities ◽  
Transition Probability ◽  
Energy Levels ◽  
Form Factors ◽  
Model Space ◽  
Negative Parity ◽  
Matrix Elements ◽  
Model Calculations

The negative-parity states of 24Mg nucleus are investigated within the shell model. We are based on the calculations of energy levels, total squared form factors, and transition probability using the p-sd-pf (PSDPF) Hamiltonian in a large model space (0 + 1) hW. The comparison between the experimental and theoretical states showed a good agreement within a truncated model space. The PSDPF-based calculations successfully reproduced the data on the total squared form factors and transition probabilities of the negative-parity states in 24Mg nucleus. These quantities depend on the one-body density matrix elements that are obtained from the PSDPF Hamiltonian. The wave functions of radial one-particle matrix elements calculated with the harmonic-oscillator potential are suitable to predict experimental data by changing the center-of-mass corrections.

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