Energy dependence of the high pT pion production and C2 azimuthal correlation in heavy ion collisions in the experiments with fixed target

The suppression of particle emission at high pT in central heavy ion collisions can be interpreted as a sign of parton energy loss in strongly interacting matter. Measurements of the azimuthal correlation C2(δϕ) can provide the information of the properties modification of mini-jets originating from hard scattering partons. The high pT 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 pT spectra, π+/π− yield ratios and the C2(δϕ) azimuthal correlation for the central Au+Au collisions at 3.5⋅A, 5⋅A, 10⋅A and 25⋅AGeV are presented.