85 citations · 264 across the 13 of their papers we have counts for
13 papers
Electromagnetic properties in Dy nuclei: A microscopic description by the pseudo-SU(3) shell model
Carlos E. Vargas, Víctor Velázquez, Sergio Lerma-Hernández +1
The large collectivity observed in the rare earth region of the nuclear landscape is well known. The microscopic studies are difficult to perform in this region due to the enormous…
Microscopic study of neutron-rich Dysprosium isotopes
Carlos E. Vargas, Victor Velazquez, Sergio Lerma
Microscopic studies in heavy nuclei are very scarce due to large valence spaces involved. This computational problem can be avoided by means of the use of symmetry based models. Gr…
Charge-independent trend of isoscalar matrix elements along the line
J. N. Orce, V. Velazquez
Shell model calculations have been carried out using the m-scheme numerical code {\small ANTOINE} in order to elucidate the particular trend of the isoscalar matrix elements, …
Ground state energy fluctuations in the Nuclear Shell Model
Victor Velazquez, Jorge G. Hirsch, Alejandro Frank +2
Statistical fluctuations of the nuclear ground state energies are estimated using shell model calculations in which particles in the valence shells interact through well defined fo…
Bounds on the presence of quantum chaos in nuclear masses
Jorge G. Hirsch, Alejandro Frank, Jose Barea +2
Differences between measured nuclear masses and those calculated using the Finite Range Droplet Model are analyzed. It is shown that they have a well defined, clearly correlated os…
Quantum chaos and nuclear mass systematics
Jorge G. Hirsch, Victor Velazquez, Alejandro Frank
The presence of quantum chaos in nuclear mass systematics is analyzed by considering the differences between measured and calculated nuclear masses as a time series described by th…
Residual correlations in liquid drop mass calculations
Jorge G. Hirsch, Alejandro Frank, Victor Velazquez
A systematic study of correlations in the chart of calculated masses of Moller and Nix is presented. It is shown that the differences between the masses calculated by Moller at al…
A study of randomness, correlations and collectivity in the nuclear shell model
V. Velazquez, J. G. Hirsch, A. Frank +1
A variable combination of realistic and random two-body interactions allows the study of collective properties, such as the energy spectra and B(E2) transition strengths in 44Ti, 4…
Spectroscopy with random and displaced random ensembles
V. Velázquez, A. P. Zuker
Due to the time reversal invariance of the angular momentum operator J^2, the average energies and variances at fixed J for random two-body Hamiltonians exhibit odd-even-J staggeri…
Band Crossing and Signature Splitting in Odd Mass fp Shell Nuclei
Victor Velazquez, Jorge G. Hirsch, Yang Sun
Structure of two sets of mirror nuclei: 47V - 47Cr and 49Cr - 49Mn, as well as 49V and 51Mn, is studied using the projected shell model. Their yrast spectra are described as an int…
Multi-Phonon -Vibrational Bands and the Triaxial Projected Shell Model
Yang Sun, Kenji Hara, Javid A. Sheikh +3
We present a fully quantum-mechanical, microscopic, unified treatment of ground-state band and multi-phonon -vibrational bands using shell model diagonalization with the triaxia…
Backbending in Dy isotopes within the Projected Shell Model
V. Velazquez, J. G. Hirsch, Y. Sun +1
A systematic study of the yrast band in 154-164 Dy isotopes using the Projected Shell Model is presented. It is shown that, in the context of the present model, enlarging the mean…
Self-consistency in the Projected Shell Model
V. Velazquez, J. G. Hirsch, Y. Sun
The Projected Shell Model is a shell model theory built up over a deformed BCS mean field. Ground state and excited bands in even-even nuclei are obtained through diagonalization o…