The threshold effect in the J/psi suppression seen in the NA50 data in lead oil lead interactions at the CERN SPS [1,2] can't be taken into account by conventional models. Other. candidate models [3] use a phase transition, and therefore let suppose that the thermodynamic variables the defined everywhere that is the so-called thermalization. The in-plane elliptic flow, which has been progosed [4] in order to probe the thermalization at these beam energies, is found to be actually I,resent ill lead on lead interactions at 158A GcV/c but can't be observed in sulphur on sulphur at 200A GeV/c in the NA38 data [5,6].
The elliptic flow of neutral transverse energy in heavy ion interactions at SPS energies
DE FALCO, ALESSANDRO
1999-01-01
Abstract
The threshold effect in the J/psi suppression seen in the NA50 data in lead oil lead interactions at the CERN SPS [1,2] can't be taken into account by conventional models. Other. candidate models [3] use a phase transition, and therefore let suppose that the thermodynamic variables the defined everywhere that is the so-called thermalization. The in-plane elliptic flow, which has been progosed [4] in order to probe the thermalization at these beam energies, is found to be actually I,resent ill lead on lead interactions at 158A GcV/c but can't be observed in sulphur on sulphur at 200A GeV/c in the NA38 data [5,6].
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