STUDY OF PSEUDO-RAPIDITY DISTRIBUTIONS OF SECONDARY PARTICLES AT HIGH ENERGIES
Fedosimova A. Olimov K. Dmitriyeva E. Ibraimova S.
2023Jagiellonian University
Acta Physica Polonica B, Proceedings Supplement
2023#16Issue 2
According to the theoretical predictions, a mixed phase of the quark–gluon plasma must be formed in the energy range from 4 to 11 GeV. In this work, a joint study of the collisions of Au-197 projectiles at 10.6 AGeV and Pb-208 projectiles at 158 AGeV with heavy (AgBr) and light (HCNO) targets present in a nuclear emulsion (Em, NIKFI BR-2) was carried out. To search for non-statistical clusters of secondary particles, we analyzed both secondary particles emitted from the interaction region and fragments of the projectile-nucleus and target-nucleus. To study pseudo-rapidity correlations, the Hurst method was used. According to the behavior of the Hurst curve, events were divided into two types: correlated and uncorrelated. Events of various types differ significantly in the fragmentation of the projectile-nucleus, multiplicity of secondary particles, and pseudo-rapidity distribution. Some correlated-type events have an “anomalous” pseudorapidity distribution: two streams of secondary particles are formed with significantly different pseudo-rapidity. In such events, several multi-charged fragments are detected.
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Institute of Physics and Technology, Satbayev University, Almaty, Kazakhstan
Institute of Nuclear Physics, Almaty, Kazakhstan
Physical-Technical Institute, Tashkent, Uzbekistan
Institute of Physics and Technology
Institute of Nuclear Physics
Physical-Technical Institute
10 лет помогаем публиковать статьи Международный издатель
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