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The platinum nuclei: concealed configuration mixing and shape coexistence
Pt isotopes shape coexistence intruder states
2011/7/20
The role of configuration mixing in the Pt region is investigated. For this chain of isotopes, the nature of the ground state changes smoothly, being spherical around mass $A\sim 174$ and $A\sim 192$ ...
αdecay Branching Ratios to Rotational Band of Heavy Even-even and OddA Nuclei
Heavy Even-even Rotational Band
2009/10/29
By using a simple barrier penetration approach, we predict the αdecay branching ratios to members of groundstate rotational band of heavy eveneven No isotopes. We also extend our approach to calcul...
Signature inversion in oddodd nuclei is investigated by using a proton and a neutron coupling to the coherent state of the core. Two parameters are employed in the Hamiltonian to set the energy sc...
Pseudo-Orbital SO(6) Symmetry for pf-Shell Nuclei
Nuclear structure Pseudo-orbital SO(6) symmetry Beta decay pf-shell nuclei
2010/10/13
This work studies the pseudo-orbital SO(6) symmetry for the first half of the 2p12-2p32-1f52
shell (denoted as the pf-shell). The spectra and beta decay are calculated for nuclei Ni, Cu and Zn with A...
Complete Fusion of Weakly Bound Nuclei Applying the Delayed X-Ray Technique: the 9Be + 144Sm System
Weakly Bound Nuclei the Delayed X-Ray Technique the 9Be + 144Sm System
2010/10/15
The detection of delayed X-rays produced by the decay that follows electron capture in the residual nuclei has been used in the past for the determination of fusion cross sections of tightly bound nuc...
Quasi-Elastic Barrier Distribution as a Tool for Investigating Unstable Nuclei
Quasi-Elastic Barrier Distribution Unstable Nuclei
2010/10/15
The method of fusion barrier distribution has been widely used to interpret the effect of nuclear structure on heavy-ion fusion reactions around the Coulomb barrier. We discuss a similar, but less wel...
Upper Bounds for Fusion Processes in Collisions of Weakly Bound Nuclei
Fusion Processes Collisions Weakly Bound Nuclei
2010/10/15
We obtain upper limits for the contributions of the incomplete fusion and sequential complete fusion processes to the total fusion cross section. Through those upper bounds we find that these processe...
Pseudo-SU(4) Model and Beta Decay of pf-shell Nuclei
Pseudo-SU(4) Model Beta Decay pf-shell Nuclei
2010/10/25
The spectra and the beta decay of the Ni-Cu-Zn isotopes with A=58, 59 and 60 are studied by using the pseudo-SU(4) model.
Angular Correlation Measurements in 155Eu Nuclei
Angular Correlation Measurements 155Eu Nuclei
2010/10/22
A method of analysis for gamma angular correlation experiments was developed for the case of a multi-detector setup, tested with several known sources of radiation, and applied in the decay of the 155...
Binding Energies of Isoscalar and Isovector Ground States of N=Z Nuclei in the Interacting Boson Model
Isoscalar and Isovector Ground States N=Z Nuclei the Interacting Boson Model
2010/10/28
An algebraic model is developed to calculate the T = 0 and T = 1 ground-state binding energies of N = Z nuclei in the 28-50 shell which is currently the object of many experimental studies.
One of the most striking features of dripline nuclei is their very low binding energy. The proximity to threshold implies that many of the standard reactions should take into account the possibility o...