Document Type
Article
Publication Date
10-1-2013
Publication Source
Physical Review C
Volume Number
88
Issue Number
4
Publisher
American Physical Society
ISSN
0556-2813
Abstract
The Modular Neutron Array (MoNA) and 4 Tm Sweeper magnet were used to measure the free neutrons and heavy charged particles from the radioactive ion beam induced Mg-32 + Be-9 reaction. The fragmentation reaction was simulated with the constrained molecular dynamics model (CoMD), which demonstrated that the < N/Z > of the heavy fragments and free neutron multiplicities were observables sensitive to the density dependence of the symmetry energy at subsaturation densities. Through comparison of these simulations with the experimental data, constraints on the density dependence of the symmetry energy were extracted. The advantage of radioactive ion beams as a probe of the symmetry energy is demonstrated through examination of CoMD calculations for stable and radioactive-beam-induced reactions.
Keywords
Equation-of-state, Sweeper Magnet, Nuclear-matter, Dense Matter, Collisions, Radius, Array
Recommended Citation
Kohley, Z., G. Christian, T. Baumann, Paul A. DeYoung, J. E. Finck, N. Frank, M. Jones, J. K. Smith, J. Snyder, A. Spyrou and M. Thoennessen. "Exploiting Neutron-Rich Radioactive Ion Beams to Constrain the Symmetry Energy." Physical Review C 88, no. 4 (2013).
