TY  - INPR
A1  - Bleicher, Marcus
T1  - Evidence for the onset of deconfinement from longitudinal momentum distributions? : Observation of the softest point of the equation of state
N2  - We analyze longitudinal pion spectra from E_lab= 2AGeV to sqrt s_NN=200GeV within Landau's hydrodynamical model. From the measured data on the widths of the pion rapidity spectra, we extract the sound velocity c_s in the early stage of the reactions. It is found that the sound velocity has a local minimum (indicating a softest point in the equation of state, EoS) at E_beam=30AGeV. This softening of the EoS is compatible with the assumption of the formation of a mixed phase at the onset of deconfinement.
Y1  - 2005
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3442
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-19722
ER  -