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A study of nuclear stopping in central collisions at intermediate energies
G. Lehaut et al
PRL 104, 232701 (2010)
Nuclear stopping has been investigated in central nuclear collisions at intermediate energies by analysing kinematically complete events recorded with the help of the 4pi multidetector INDRA for a large variety of symmetric systems. It is found that the isotropy ratio reaches a minimum near the Fermi energy, saturates or slowly increases depending on the mass of the system as the beam energy increases and then stays significantly lower than unity, showing that the full stopping is not achieved even for heavier systems. Close to and above the Fermi energy, experimental data shows no effect of the isospin content of the interacting system. A comparison with transport model calculations (IQMD) reveals that this latter overestimates the stopping power at low energies.
Collaboration(s)
INDRA - ALADIN
