What type of study is this?

This is a In Vitro Study study (also classified as: Observational).

August 17, 2025

Elastic scattering of 6He ions by 58Ni and 209Bi nuclei near the Coulomb barrier

Key Points

Evidence shows that the breakup of the 6He projectile significantly affects elastic scattering cross sections.
At energies of 10 MeV and 14.7 to 22 MeV, elastic scattering cross sections were measured for two nuclei: 58Ni and 209Bi.
Analysis utilized an optical model with electric optical potential that accounts for polarizability and breakup effects.
Results suggest the presence of a dineutron configuration in the ground state of the exotic 6He nucleus.

Abstract

Experimental elastic scattering cross sections of 6He ions by 58Ni and 209Bi nuclei at 10 МеV and 14.7, 16.2, 17.8, 19.1, 22 МеV, respectively, are analyzed in the framework of optical model with electric optical potential using. This potential allows to take into account the polarizability and breakup of 6He projectile in the field of target nucleus in the effective way. The considerable influence of projectile breakup on elastic scattering cross sections formation near the Coulomb barrier is shown. The last fact is the direct evidence of dineutron configuration existence in the ground state in this exotic nucleus.

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