New results and perspectives on R_{AA} measurements below 20 GeV CM-energy at fixed target machines

Andras Laszlo, Zoltan Fodor, Gyorgy Vesztergombi

Transverse momentum spectra of pi^{+/-} at midrapidity are measured at high p_T in p+p and p+Pb collisions at 158 GeV/nucleon beam energy by the NA49 experiment. This study is comp…