Электронный каталог

Статья

Aitbayev, A.Zh.
Investigation of the Nuclear Modification Factor for Inclusive Charged Particles in Au+Au Collisions within the BES-II STAR Energy Range Using the UrQMD and SMASH+vHLLE Models / A.Zh.Aitbayev, A.A.Aparin, A.A.Korobitsin, Ye.S.Mukhamedzhanov. – Text : electronic // Advances in Nuclear Science and Applications. – 2026. – Vol. 2, No. 2. – P. 111-120. – URL: https://doi.org/10.63907/ansa.v2i2.90. – Bibliogr.: 23.

The Beam Energy Scan (BES) program at the RHIC collider is designed to perform a detailed study of the QCD phase diagram, including the search for the phase transition boundary of the first-order phase transition from hadronic matter to QGP, the determination of the QCD critical point location, and the investigation of other aspects of the phase behavior of nuclear matter. A previously observed feature in QGP studies is the suppression of high-transverse-momentum particle yields, p&sub(T) >2GeV/c, at *%s&sub(NN)=62.4 200 GeV. This effect was established through measurements of the nuclear modification factors R&sub(AA) and R&sub(CP) for charged particles in the BES-I program of the STAR experiment (Phys. Rev. Lett. textbf{121}, 032301 (2018)). This work presents a comparison of the nuclear modification factor for inclusive charged particles in Au+Au collisions at *%slk&sub(NN)=7.7 27 GeV, obtained from Monte Carlo simulations using the UrQMD transport model and the SMASH+vHLLE hybrid model, with the published experimental data from the STAR BES-I program. The ability of the models under consideration to reproduce the experimental observations over a wide range of energies and transverse momenta is analyzed, and possible sources of the observed discrepancies are discussed.



ОИЯИ = ОИЯИ (JINR)2026
Спец.(статьи,препринты) = С 343 а - Теория ядерных реакций. Различные модели: статистическая, оптическая, резонансная
Спец.(статьи,препринты) = С 343 е2 - Взаимодействие релятивистских ядер с ядрами
Спец.(статьи,препринты) = С 323.5д - Кварк-глюонная плазма