High-p{sub T} spectra of charged hadrons in Au + Au collisions at {radical}s{sub NN} = 9.2 GeV in STAR

The production of hadrons in heavy-ion collisions at high-p{sub T} provides an important information on mechanism of particle formation and constituent energy loss in medium. Such information is needed for search of a Critical Point and signatures of phase transition. Measurements by the STAR Collaboration of charged hadron production in Au + Au collisions at {radical}s{sub NN} = 9.2 GeV over a wide transverse momentum p{sub T} = 0.2-4 GeV/c and at mid-rapidity range are reported. It allows for a first measurement of the spectra for charged hadrons at high p{sub T} at this energy. The spectra demonstrate the dependence on centrality which enhances with p{sub T}. The constituent energy loss and its dependence on transverse momentum of particle, and centrality of collisions are estimated in the z-scaling approach.