Energy dependence of collective flow of neutrons and protons in197Au+197Au collisions
Abstract
We investigate the beam energy dependence of neutron and proton squeeze-out in collisions of197Au+197Au at E/A=400—800 MeV. The azimuthal anisotropy that describes the enhanced emission of mid-rapidity neutrons perpendicular to the reaction plane rises strongly with the transverse momentum of the neutrons. This dependence of the azimuthal anisotropy follows a universal curve — independent of beam energy — if the neutron momenta are measured in fractions of the projectile momentum per mass unit. Analogously, the kinetic energy spectra of mid-rapidity neutrons exhibit a universal behaviour as a function of the kinetic energy of the projectile.
- Publication:
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Zeitschrift fur Physik A Hadrons and Nuclei
- Pub Date:
- June 1994
- DOI:
- 10.1007/BF01290679
- Bibcode:
- 1994ZPhyA.350..115L
- Keywords:
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- 25.70.Np