Chaos driven fusion enhancement factor at astrophysical energies

Abstract

We perform molecular dynamics simulations to assess the screening effects by bound target electrons in low energy nuclear reactions in laboratories. Quantum effects corresponding to the Pauli and Heisenberg principle are enforced by constraints. We show that the enhancement of the average cross section and of its variance is due to the perturbations induced by the electrons.This gives a correlation between the maximum amplitudes of the inter-nuclear oscillational motion and the enhancement factor. It suggests that the chaotic behavior of the electronic motion affects the magnitude of the enhancement factor.

4 pages, 3 figures

References in corpus (4)

• Constraint Molecular Dynamics approach to Fermionic systems
• Influence of tunneling on electron screening in low energy nuclear reactions in laboratories
• Constrained Molecular Dynamics simulation of the Quark-Gluon Plasma
• Nuclear fragmentation by tunneling

Cited by in corpus (12)

• Fusion reactions initiated by laser-accelerated particle beams in a laser-produced plasma
• Measurement of the plasma astrophysical S factor for the 3He(D, p)4He reaction in exploding molecular clusters
• Model-independent determination of the astrophysical S-factor in laser-induced fusion plasmas
• Isospin Effects on Astrophysical S-Factors
• Constrained Molecular Dynamics Simulations of Atomic Ground-States
• Thermal and chaotic distributions of plasma in laser driven Coulomb explosions of deuterium clusters
• Dynamical Pair Production at Sub-Barrier Energies for Light Nuclei
• Pair production as a probe for the dynamics of nuclear fission and $\alpha$ decay
• The role of the Heisenberg principle in Constrained Molecular Dynamics model
• Application of the X-ray laser to muon-catalyzed d-t fusion
• Influence of the Electronic Chaotic Motion on the Fusion Dynamics at Astrophysical Energies
• Influence of Chaos on the fusion enhancement by electron screening