Impact of the radial profile of atomic nuclei on observables in high-energy collisions
arxiv(2024)
Abstract
In heavy-ion phenomenology, the nucleon density distribution in colliding
nuclei is commonly described by a two-parameter Woods-Saxon (WS) distribution.
However, this approach omits the detailed radial structure in the density
distribution that arises from quantal filling patterns of neutrons and protons.
These fine structures, as estimated by the Skyrme-Hartree-Fock density
functional, cause small deviations in heavy-ion observables from the WS
baseline, which cannot be captured by simply readjusting the WS parameters.
These deviations are dependent on centrality and observable but often exhibit
similar shapes for different nuclei. Such fine structures may introduce up to a
25
the ^96Ru+^96Ru and ^96Zr+^96Zr mid-central collisions from the
STAR Collaboration.
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