Abstract
Results of a new analysis of negative particle yields in Au + Au collisions obtained by the STAR Collaboration in the first phase of the RHIC Beam Energy Scan (BES) program in the framework of \(z\)-scaling approach are presented. The spectra were measured over a wide range of collision energy \(\sqrt {{{s}_{{NN}}}} = 7.7 - 200\) GeV and transverse momentum of produced particles for different centralities at \(\left| \eta \right| < 0.5.\) The concept of the \(z\)-scaling based on self-similarity, locality, and fractality of hadron interactions at a constituent level is verified. The constituent energy loss as a function of energy and centrality of collision and transverse momentum of inclusive particle was estimated.
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Funding
The investigations have been partially supported by Project funded by the MEYS of the Czech Republic under the contract LTT1802 and grant LG 15052.
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To the memory of L.N. Lipatov
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Tokarev, M.V., Kechechyan, A.O. & Zborovský, I. Self-Similarity of Negative Particle Production in Au + Au Collisions at STAR. Phys. Part. Nuclei Lett. 16, 508–513 (2019). https://doi.org/10.1134/S1547477119050285
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DOI: https://doi.org/10.1134/S1547477119050285