# Single Charge-Exchange Reactions and the Neutron Density at the Surface of the Nucleus

## TL;DR

This paper investigates how different transition densities affect charge-exchange reaction cross-sections, particularly at the nuclear surface, using the (3He,t) reaction to probe neutron density distributions.

## Contribution

It introduces a comparative analysis of transition densities in charge-exchange reactions, emphasizing surface sensitivity and its impact on cross-section calculations.

## Key findings

- Distinct cross-section differences depend on the transition density used.
- Surface-sensitive reactions reveal variations in neutron density at the nuclear surface.
- The (3He,t) reaction effectively probes surface neutron densities.

## Abstract

In this work we study the charge-exchange reaction to Isobaric Analog State using two types of transition densities. We show that for projectiles that do not probe the interior of the nucleus but mostly the surface of this nucleus, distinct differences in the cross-section arise when the two types of transition densities are employed. We demonstrate this by considering the (3He,t) reaction.