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Fragment Isospin as a Probe of Heavy-Ion Collisions

H. Xu·R. Alfaro·B. Davin·L. Beaulieu·Y. Larochelle·T. Lefort·R. Yanez·R. T. de Souza·T. X. Liu·X. D. Liu·W. G. Lynch·R. Shomin·W. P. Tan·M. B. Tsang·A. Vander Molen·A. Wagner·H. F. Xi·C. K. Gelbke·R. J. Charity·L. G. Sobotka·A. S. Botvina
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Abstract

Isotope ratios of fragments produced at mid-rapidity in peripheral and central collisions of 114Cd ions with 92Mo and 98Mo target nuclei at E/A = 50 MeV are compared. Neutron-rich isotopes are preferentially produced in central collisions as compared to peripheral collisions. The influence of the size (A), density, N/Z, E*/A, and Eflow/A of the emitting source on the measured isotope ratios was explored by comparison with a statistical model (SMM). The mid-rapidity region associated with peripheral collisions does not appear to be neutron-enriched relative to central collisions.

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H. Xu, R. Alfaro, B. Davin, L. Beaulieu, Y. Larochelle, T. Lefort, R. Yanez, R. T. de Souza, T. X. Liu, X. D. Liu, W. G. Lynch, R. Shomin, W. P. Tan, M. B. Tsang, A. Vander Molen, A. Wagner, H. F. Xi, C. K. Gelbke, R. J. Charity, L. G. Sobotka, A. S. Botvina. 2001-07-17. Fragment Isospin as a Probe of Heavy-Ion Collisions. https://doi.org/10.1103/physrevc.65.061602

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