Abstract

The suppression of particle emission at high p T in central heavy ion collisions can be interpreted as a sign of parton energy loss in strongly interacting matter. Measurements of the azimuthal correlation C 2 ( δ ϕ ) can provide the information of the properties modification of mini-jets originating from hard scattering partons. The high p T pions in heavy ion collisions can be sensitive to the partonic phase of the nuclear matter at the energy domain of Nuclotron (JINR) and SIS100 (FAIR). The simulation study of the experimental measurement the π + ( π − ) at high p T spectra, π + / π − yield ratios and the C 2 ( δ ϕ ) azimuthal correlation for the central A u + A u collisions at 3.5 ⋅ A , 5 ⋅ A , 10 ⋅ A and 25 ⋅ A GeV are presented.

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