The effect of nuclear and Coulomb interactions on the nuclear shapes of two colliding208Pb nuclei

Abstract

Using a complex energy density functional derived from the Reid soft-core potential, the changes in nuclear shapes of two colliding 2~ are investigated. A{ each separation distance R, the total binding energy of the Pb + Pb system is minimized w.r.t, the quadrupole deformation and diffuseness parameters of nuclear densities. It is found that the nuclear shapes are strongly affected by the nuclear and Coulomb interactions. A sudden transition occurs from oblate to prolate shapes around R ~ -16.8fm and a smooth one from prolate to oblate shapes around R -11.76 fm.

Reactions of Proton Halo Nuclei in a Relativistic Optical Potential

“…A T and A P are the mass numbers of target and projectile. The symmetry energy coefficient H sym has been assumed in a previous work to take a phenomenological expression as follows [12]…”

“…Warner et al [6] have noticed an enhancement in the reaction cross sections of the proton halo nuclei 17 Ne and 12 N on Si relative to their neighbors. Although this enhancement is expected to arise from an extension in the proton density distributions of these proton halo nuclei theoretical investigations based on the Glauber model did not produce these enhancements [6].…”

Statistical properties and stability of hot nuclei in a semiclassical relativistic approach

“…Rp is a length-scale parameter taken to be 1 fm. In a previous work [1,2,24] 5 was taken to be 0.2 for the heavy nuclei. This value is consistent with the present approximation which is more general and directly relates the increase in the neutron radius to the increase in the neutron number of the nucleus.…”