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Maximum Azimuthal Anisotropy of Neutrons from Nb-Nb Collisions at 400 AMeV and the Nuclear Equation of State

M. Elaasar·R. Madey·W. M. Zhang·J. Schambach·D. Keane·B. D. Anderson·A. R. Baldwin·J. W. Watson·G. D. Westfall·G. Krebs·H. Wieman·C. Gale·K. Haglin
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Abstract

We measured the first azimuthal distributions of triple--differential cross sections of neutrons emitted in heavy-ion collisions, and compared their maximum azimuthal anisotropy ratios with Boltzmann--Uehling--Uhlenbeck (BUU) calculations with a momentum-dependent interaction. The BUU calculations agree with the triple- and double-differential cross sections for positive rapidity neutrons emitted at polar angles from 7 to 27 degrees; however, the maximum azimuthal anisotropy ratio for these free neutrons is insensitive to the size of the nuclear incompressibility modulus K characterizing the nuclear matter equation of state.

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M. Elaasar, R. Madey, W. M. Zhang, J. Schambach, D. Keane, B. D. Anderson, A. R. Baldwin, J. W. Watson, G. D. Westfall, G. Krebs, H. Wieman, C. Gale, K. Haglin. 1993-04-13. Maximum Azimuthal Anisotropy of Neutrons from Nb-Nb Collisions at 400 AMeV and the Nuclear Equation of State. https://doi.org/10.1103/physrevc.49.r10

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