20–25 Aug 2023
Universität Hamburg
Europe/Berlin timezone

Investigating collective effects in small collision systems using PYTHIA8 and EPOS4 simulations

22 Aug 2023, 16:20
15m
Raum W221 (West Wing)

Raum W221

West Wing

Edmund-Siemers-Allee 1 Flügelbau West
Parallel session talk Ultra-Relativistic Nuclear Collisions T05 Ultra-Relativistic Nuclear Collisions

Speaker

Alexandru Manea (Institute of Space Science)

Description

Studies have yielded strong evidence that a deconfined state of quarks and gluons, the quark--gluon plasma, is created in heavy-ion collisions. This hot and dense matter exhibits almost zero friction and a strong collective behavior. An unexpected collective behavior has also been observed in small collision systems. In this talk, the origin of collectivity in small collision systems is addressed by confronting PYTHIA8 and EPOS4 models using measurements of azimuthal correlations for inclusive and identified particles. In particular, anisotropic flow coefficients measured using two- and four-particle correlations with various pseudorapidity gaps, per-trigger yields, and balance functions are reported in pp collisions at $\sqrt{s}=13.6$ TeV and p--Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV. The results are compared with the available experimental data.

Collaboration / Activity Institute of Space Science

Primary authors

Dr Alexandru Florin Dobrin (Institute of Space Science) Alexandru Manea (Institute of Space Science) Dr Andrea Danu (Institute of Space Science) Ms Catalina Diana Brandibur (Institute of Space Science)

Presentation materials