collaborators

5 papers

astro-ph.SR2025

The advanced evolution of massive stars: I. New reaction rates for carbon and oxygen nuclear reactions

T. Dumont, A. Bonhomme, A. Griffiths +9

The nuclear rates for reactions involving 12C and 16O are key to compute the energy release and nucleosynthesis of massive stars during their evolution. These rates shape the stell…

nucl-th2025

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…

nucl-th2024

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…

nucl-th2024

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…

nucl-th2024

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…