Probing neutron skin and symmetry energy with relativistic isobar collisions

TL;DR

This paper proposes three observables in relativistic isobar collisions to improve the measurement of neutron skin thickness and symmetry energy, potentially surpassing traditional low-energy techniques.

Contribution

It introduces three novel observables—hadron multiplicity ratios, mean transverse momenta, and net charge multiplicities—for probing neutron skin and symmetry energy.

Findings

Potentially significant improvement over traditional methods

Observables sensitive to neutron skin and symmetry energy

Enhanced understanding of nuclear structure

Abstract

In these proceedings, we present the three proposed observables to probe the neutron skin and symmetry energy with relativistic isobar collisions, namely, the isobar ratios of the produced hadron multiplicities ($N_{\rm ch}$), the mean transverse momenta ($\langle p_{\perp} \rangle$), and the net charge multiplicities ($\Delta Q$). Our findings suggest potentially significant improvement to neutron skin and symmetry energy determination over traditional low energy methods.