Manifestation of nuclear cluster structure in Coulomb sums

TL;DR

This study measures Coulomb sums for 6Li and 7Li nuclei over an extended momentum transfer range, revealing a link between nuclear cluster structure and Coulomb sum behavior, with implications for understanding nuclear clustering.

Contribution

It provides new experimental Coulomb sum data for 6Li and 7Li nuclei over a wider momentum transfer range and explores their relation to nuclear clusterization.

Findings

Coulomb sums for 6Li and 7Li differ from other nuclei.

The momentum transfer at which Coulomb sums stabilize relates to nuclear clusterization.

A relationship between cluster isolation parameter and Coulomb sum behavior is established.

Abstract

Experimental Coulomb sum values of 6^Li and 7^Li nuclei have been obtained, extending the earlier reported momentum transfer range of Coulomb sums for these nuclei up to q = 0.750 ... 1.625 fm^-1. The dependence of the Coulomb sums on the momentum transfers of 6^Li and 7^Li is shown to differ substantially from similar dependences for all the other nuclei investigated. Relationship between the nuclear cluster structure and Coulomb sums has been considered. The momentum transfer value, above which the Coulomb sum becomes constant, is found to be related to the cluster isolation parameter x, which characterizes the degree of nuclear clusterization.