Электронный каталог

Статья

Rode, S.P.
Flow Fluctuations and Kinetic Freeze-Out of Identified Hadrons at Energies Available at the CERN Super Proton Synchrotron / S.P.Rode, P.P.Bhaduri, A.Jaiswal // Physical Review C [Electronic resource]. – 2023. – Vol.108, No.1. – P.014906. – URL: https://doi.org/10.1103/PhysRevC.108.014906. – Bibliogr.:41.

We investigate the effect of flow fluctuations, incorporated in non-boost-invariant blast-wave model, on kinetic freeze-out parameters of identified hadrons in low energy relativistic heavy-ion collisions. For the purpose of this study, we use the transverse momentum spectra of the identified hadrons produced in central Pb–Pb collisions, at CERN Super Proton Synchrotron energies ranging from Elab=20A–158A GeV, and analyze them within a modified non-boost-invariant blast wave model. We perform simultaneous fits of the transverse momentum spectra for light hadrons (π−, K±, p) and heavy strange hadrons (Λ, ¯¯¯Λ, ϕ, Ξ±, Ω±) separately. We also fit the transverse momentum spectra of charmonia (J/Ψ, Ψ′) at Elab=158A GeV. Our findings suggest that the inclusion of flow fluctuations enhances kinetic freeze-out temperature in case of light and heavy strange hadrons and reduces the corresponding transverse flow velocities. Moreover, we find that the kinetic freeze-out parameters of the charmonia at Elab=158A GeV are least affected by inclusion of flow fluctuations. Based on this, we make predictions which can provide further insights on the role of flow fluctuations in relativistic heavy-ion collisions.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 323.5 - Теория взаимодействия частиц при высоких энергиях$
Спец.(статьи,препринты) = С 343 е2 - Взаимодействие релятивистских ядер с ядрами
Бюллетени = 51/023