183 citations · 1.9k across the 93 of their papers we have counts for
49 papers · 1 filter
Influence of isoscalar and isovector pairing on Gamow-Teller transitions for nuclei in the 2p1f shell: A schematic shell model study
A. Carranza M., S. Pittel, Jorge G. Hirsch
We perform a systematic study of Gamow-Teller (GT) transitions in the 2p1f shell, using the nuclear shell model with two schematic Hamiltonians. The use of the shell model provides…
Uncertainties in nuclear transition matrix elements for and modes of neutrinoless positron double- decay within PHFB model
P. K. Rath, R. Chandra, K. Chaturvedi +3
Uncertainties in the nuclear transition matrix elements and of the double-positron emission and electron-positron conversion $(\varepsilon…
S isotopes in space : Shell-model interpretation
Archana Saxena, P. C. Srivastava, Jorge G. Hirsch +2
The structure of S isotopes is described by performing comprehensive shell model calculations with SDPF-U and SDPFMW interactions. Protons and neutrons are restricted…
Shell model description of Ge isotopes
J. G. Hirsch, P. C. Srivastava
A shell model study of the low energy region of the spectra in Ge isotopes for is presented, analyzing the excitation energies, quadrupole moments, values…
Deformation and shell effects in nuclear mass formulas
Cesar Barbero, Jorge G. Hirsch, Alejandro Mariano
We analyze the ability of the three different Liquid Drop Mass (LDM) formulas to describe nuclear masses for nuclei in various deformation regions. Separating the 2149 measured nuc…
Nuclear masses, deformations and shell effects
Jorge G. Hirsch, Cesar Barbero, Alejandro E. Mariano
We show that the Liquid Drop Model is best suited to describe the masses of prolate deformed nuclei than of spherical nuclei. To this end three Liquid Drop Mass formulas are employ…
The anatomy of the simplest Duflo-Zuker mass formula
Joel Mendoza-Temis, Jorge G. Hirsch, Andres P. Zuker
The simplest version of the Duflo-Zuker mass model (due entirely to the late Jean Duflo) is described by following step by step the published computer code. The model contains six…
Deformation effects and neutrinoless positron decay of Ru, Pd, Cd, Xe, Ba and Dy isotopes within Majorona neutrino mass mechanism
P. K. Rath, R. Chandra, K. Chaturvedi +2
The and modes of Ru, Pd, Cd, Xe, Ba and Dy isotopes are studied in the Projected Hartr…
Quadrupolar correlations and deformation effect on two neutrino and modes of Dy isotope
P. K. Rath, R. Chandra, S. Singh +2
The two-neutrino positron double- decay modes of Dy isotope are studied in the Projected Hartree-Fock-Bogoliubov framework for the transition. Theoretic…
How good are the Garvey-Kelson predictions of nuclear masses?
Irving O. Morales, J. C. López Vieyra, J. G. Hirsch +1
The Garvey-Kelson relations are used in an iterative process to predict nuclear masses in the neighborhood of nuclei with measured masses. Average errors in the predicted masses fo…
Nuclear deformation and neutrinoless double- decay of Zr, Mo, Ru, Pd, Te and Nd nuclei in mass mechanism
K. Chaturvedi, R. Chandra, P. K. Rath +2
The decay of Zr, Mo, Ru, Pd, Te and Nd isotopes for the transition is studied in the P…
Influence of the hexadecapole deformation on the two neutrino double-$\be ta $ decay
R. Chandra, P. K. Rath, P. K. Raina +1
The two neutrino double beta decay of Zr, Mo, Ru, Pd, Te and Nd nuclei for the transi…
Nuclear deformation and the two neutrino double-βdecay in ^{124,126}Xe,^{128,130}Te, ^{130,132}Ba and ^{150}Nd isotopes
S. Singh, R. Chandra, P. K. Rath +2
The two neutrino double beta decay of Xe,Te, Ba and Nd isotopes is studied in the Projected Hartree-Fock-Bogoliubov (PHFB) model. Theor…
A semiclassical description of the Autocorrelations in Nuclear Masses
Antonio M. Garcia-Garcia, Jorge G. Hirsch, Alejandro Frank
Nuclear mass autocorrelations are investigated as a function of the number of nucleons. The fluctuating part of these autocorrelations is modeled by a parameter free model in which…
The positron double- decay with emission of two neutrinos in the nuclei Ru, Pd, Cd and Cd
P. K. Raina, A. Shukla, S. Singh +2
Theoretical results for %the positron double- decay with emission of two neutrinos in the nuclei Ru, Pd, Cd and Cd are presented.…
Low energy 0+ excitations in 158Gd
Jorge G. Hirsch, Gabriela Popa, Shelly R. Lesher +3
High precision (p,t) studies of the deformed nucleus 158Gd allowed the observation of 13 excited 0+ states below an excitation energy of 3.1 MeV. This high density of low energy st…
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…
Nuclear masses set bounds on quantum chaos
Jose Barea, Alejandro Frank, Jorge G. Hirsch +1
It has been suggested that chaotic motion inside the nucleus may significantly limit the accuracy with which nuclear masses can be calculated. Using a power spectrum analysis we sh…
Two neutrino positron double beta decay of Cd for transition
A. Shukla, P. K. Raina, R. Chandra +2
The two neutrino positron double beta decay of Cd for 0 0 transition has been studied in the Hartree-Fock-Bogoliubov model in conjunction with the summatio…
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…
Pseudo + quasi SU(3): Towards a shell-model description of heavy deformed nuclei
Jorge G. Hirsch, Carlos E. Vargas, Gabriela Popa +1
The pseudo-SU(3) model has been extensively used to study normal parity bands in even-even and odd-mass heavy deformed nuclei. The use of a realistic Hamiltonian that mixes many SU…
Microscopic description of the scissors mode in odd-mass heavy deformed nuclei
Carlos E. Vargas, Jorge G. Hirsch, Jerry P. Draayer
Pseudo-SU(3) shell-model results are reported for M1 excitation strengths in 157-Gd, 163-Dy and 169-Tm in the energy range between 2 and 4 MeV. Non-zero pseudo-spin couplings betwe…