Properties of the initial participant matter interaction zone in near-Fermi-energy heavy-ion collisions

2006/03/07 by J. Wang, T. Keutgen, R. Wada +40
Physics and Astronomy · #High-Energy Particle Collisions Research #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #nucl-ex

paper · pdf · doi:10.1103/physrevc.75.014604

published as Phys.Rev.C75:014604,2007 · 7 pages, 8 figures

arxiv created 2006/03/07 · openalex publication_date 2007/01/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The sizes, temperatures, and free neutron-to-proton ratios of the initial interaction zones produced in the collisions of 40 MeV/nucleon ⁴⁰Ar+¹¹²Sn and 55 MeV/nucleon ²⁷Al+¹²⁴Sn are derived using total detected neutron plus charged particle multiplicity as a measure of the impact parameter range and number of participant nucleons. The size of the initial interaction zone, determined from a coalescence model analysis, increases significantly with decreasing impact parameter. The temperatures and free neutron-to-proton ratios in the interaction zones are relatively similar for different impact parameter ranges and evolve in a similar fashion.

Citations

• Spinodal decomposition of low-density asymmetric nuclear matter
• Critical behavior in light nuclear systems: Experimental aspects
• Isospin Fractionation in Nuclear Multifragmentation
• The α-particle in nuclear matter