6533b7d8fe1ef96bd126adc5

RESEARCH PRODUCT

Description of sub-barrier heavy ion fusion in a semiclassical quantum tunneling model

Taklit SamiN. YahlaliJose Diaz

subject

PhysicsNuclear and High Energy PhysicsFusionQuantum mechanicsQuantum electrodynamicsSemiclassical physicsFísica nuclearHeavy ionQuantum tunnelling

description

In this paper we apply the semiclassical method based on the Feynman path integral formalism to sub-barrier fusion of heavy nuclei. Cross sections are calculated and compared to experimental data and to coupled-channel calculations for different mass systems: 32S124Mg, 58Ni164Ni, and 16O1208Pb. The semiclassical method and coupled-channel calculations give comparable results. It is found that the coupling produces a renormalization of the barrier that is responsible for the enhancement of sub-barrier fusion cross sections and a dissipative force along the classical tunneling path.

https://doi.org/10.1103/physrevc.53.1845