Электронный каталог

Статья

Tokarev, M.
Fractal Entropy of Nuclear Medium Probed by K*0&sub(S) Mesons Produced in AuAu Collisions at RHIC / M.Tokarev, I.Zborovsky // Physics [Electronic resource]. – 2023. – Vol.5, No.2. – P.537-546. – URL: https://doi.org/10.3390/physics5020038. – Bibliogr.:41.

In this paper, we review our findings concerning fractal entropy of microscopic configurations corresponding to the production of 𝐾0𝑆 mesons in AuAu collisions in the z-scaling approach. The entropy is expressed via structural and fragmentation fractal dimensions, and model parameter 𝑐AuAu is interpreted as a specific heat of produced medium. These parameters are related to the respective momentum fractions of the colliding nuclei, the momentum fractions of the scattered constituents that fragment into the produced hadrons, and the multiplicity density of negative particles in the central interaction region. The dependence of the entropy on the collision energy over the range of 7.7–200 GeV for most central and most peripheral events is studied as a function of the transverse momentum of the produced 𝐾0𝑆 mesons. A non-trivial dependence of the entropy on the collision energy with decreasing transverse momentum is found. This reflects the irregularity of the behavior of the specific heat, 𝑐AuAu, and can point to a manifestation of phase transition in nuclear matter.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 343 е2 - Взаимодействие релятивистских ядер с ядрами
Бюллетени = 48/023