Abstract
The production of hadrons in heavy-ion collisions at high-p 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 √s NN = 9.2 GeV over a wide transverse momentum p 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 T at this energy. The spectra demonstrate the dependence on centrality which enhances with p T . The constituent energy loss and its dependence on transverse momentum of particle, and centrality of collisions are estimated in the z-scaling approach.
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Tokarev, M.V. High-p T spectra of charged hadrons in Au + Au collisions at √s NN = 9.2 GeV in STAR. Phys. Atom. Nuclei 74, 799–804 (2011). https://doi.org/10.1134/S106377881105022X
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DOI: https://doi.org/10.1134/S106377881105022X