Article
Disappearance of flow as a probe of the nuclear equation of state
Physical Review C
(1992)
Abstract
The disappearance of directed, collective nuclear motion (''flow'') away from the interaction region of heavy-ion collisions has been observed using the Lawrence Berkeley Laboratory Streamer Chamber. We find that flow vanishes at a beam energy near 50 MeV/nucleon for the La139+139La system and near 60 MeV/nucleon for the Nb93+93Nb system. The disappearance of flow may be understood as resulting from a balance between attractive and repulsive scattering strengths. Full calculations with the Boltzmann-Uehling-Uhlenbeck model show that the disappearance of flow is sensitive to the assumed nuclear equation of state (EOS) and to the in-medium scattering cross section (σNN). Also, in the Nb93+93Nb system, the purely attractive contribution to the reduced flow does not appear to be strongly sensitive to the EOS assumptions.
Publication Date
October, 1992
DOI
10.1103/PhysRevC.46.1416
Publisher Statement
©1992 American Physical Society
Citation Information
D. Krofcheck, Craig Ogilvie and et al.. "Disappearance of flow as a probe of the nuclear equation of state" Physical Review C Vol. 46 Iss. 4 (1992) p. 1416 - 1424 Available at: http://works.bepress.com/craig-ogilvie/268/