209 citations · 329 across the 15 of their papers we have counts for
15 papers
Stochastic Mean-Field Theory and Applications to Multinucleon Transfer and Kinetic Energy Dissipation Processes in Heavy-Ion Collisions
S. Ayik, M. Arik, O. Yilmaz +1
In this Review article, a brief description of the stochastic mean-field theory (SMF) for describing reaction dynamics in low-energy heavy-ion collisions at bombarding energies in…
Muon-induced fission as a probe of the underlying dynamics in nuclear fission
Christian Ross, A. S. Umar
Muon-induced fission could be utilized as a probe to study the underlying dynamics of nuclear fission. The probability of muon attachment to the light asymmetric fission fragment i…
Shell effects in quasi-fission for calcium induced reactions forming thorium isotopes
C. Simenel, A. S. Umar, K. Godbey +1
Quantum shell effects induce an asymmetric fission mode in actinides, which disappears in neutron deficient isotopes. Quasi-fission, characterized by a significant mass transfer in…
Impact of tensor forces on quasifission product yield distributions
Liang Li, Lu Guo, K. Godbey +1
We employ the microscopic time-dependent Hartree-Fock (TDHF) theory to study the 48Ca+249Bk and 48Ti+238U systems, taking into account the dependence on orientation for deformed nu…
Neutron-rich isotope production for in reaction
S. E. Ocal, O. Yilmaz, S. Ayik +1
Background: Multi-nucleon transfer (MNT) reactions in actinide systems are a promising method to synthesize transuranium neutron-rich elements. Appropriate theoretical approaches a…
Pauli energy contribution to nucleus-nucleus interaction
A. S. Umar, K. Godbey, C. Simenel
The investigation delves into understanding how the Pauli exclusion principle influences the bare potential between atomic nuclei through the application of advanced theoretical me…
Isospin composition of fission barriers
K. Godbey, C. Ross, A. S. Umar
We employ a microscopic method to study how isospin affect the fission potential of Pu. Our approach uses constrained Hartree-Fock theory (CHF) which allows us to separatel…
Role of isospin composition in low energy nuclear fusion
Richard Gumbel, Christian Ross, A. S. Umar
We employ a microscopic approach that examines the impact of isospin dynamics on the process of low energy nuclear fusion along an isotope chain and dependence on deformation. Our…
Description of multinucleon transfer mechanism for and reactions in quantal transport approach
M. Arik, S. Ayik, O. Yilmaz +1
This work aims to show that the quantal diffusion approach based on the stochastic mean field (SMF) theory is capable of explaining the reaction dynamics observed in MNT reactions.…
Constrained Density Functional Theory Calculation with Iterative Optimization
D. Kidd, A. S. Umar, K. Varga
An iterative optimization approach that simultaneously minimizes the energy and optimizes the Lagrange multipliers enforcing desired constraints is presented. The method is tested…
Quantal Nucleon Diffusion I: Central Collisions of Symmetric Nuclei
S. Ayik, O. Yilmaz, B. Yilmaz +1
Quantal diffusion mechanism of nucleon exchange is studied in the central collisions of several symmetric heavy-ion collisions in the framework of the Stochastic Mean-Field (SMF) a…
Two-body dissipation effects on synthesis of superheavy elements
M. Tohyama, S. Umar
To investigate the two-body dissipation effects on the synthesis of superheavy elements, we calculate low-energy collisions of the isotones (Ge, Se, Kr…
The TDHF Code Sky3D
J. A. Maruhn, P. -G. Reinhard, P. D. Stevenson +1
The nuclear mean-field model based on Skyrme forces or related density functionals has found wide-spread application to the description of nuclear ground states, collective vibrati…
Eulerian Rotations of Deformed Nuclei for TDDFT Calculations
D. A. Pigg, A. S. Umar, V. E. Oberacker
We discuss three practical methods for performing Eulerian rotations of Slater determinants in a three-dimensional Cartesian geometry. In addition to the straightforward applicatio…
Impact-Parameter Dependence of Multiple Lepton-pair Production from Electromagnetic Fields
M. C. Guclu, J. C. Wells, A. S. Umar +2
In relativistic heavy-ion collisions, the strong Lorentz-contracted electromagnetic fields are capable of producing copious numbers of lepton pairs through the two-photon mechanism…