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

doi:10.1103/physrevc.65.061602

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Fragment Isospin as a Probe of Heavy-Ion Collisions

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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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