Nucleus–nucleus potential from identical-particle interference

Based on the quantum interference between two-identical-nucleus scattering at energies around the Coulomb barrier, the barrier positions for 58Ni+58Ni and 16O+16O are extracted from Mott oscillations in the angular distributions around 90° for the first time. The angle separation of pairs of Mott sc...

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Bibliographic Details
Main Authors: Ning Wang, Yongxu Yang, Min Liu, Chengjian Lin
Format: Article
Language:English
Published: Elsevier 2018-09-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269318305422
Description
Summary:Based on the quantum interference between two-identical-nucleus scattering at energies around the Coulomb barrier, the barrier positions for 58Ni+58Ni and 16O+16O are extracted from Mott oscillations in the angular distributions around 90° for the first time. The angle separation of pairs of Mott scattering valleys around 90° has a direct relationship with the closest distance between two nuclei in elastic scattering. Together with the barrier height from fusion excitation function, the extracted barrier position provides a sensitive probe to constrain the model predictions for the nucleus–nucleus potential barrier.
ISSN:0370-2693