Bonn 2020 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 36: Heavy-Ion Collisions and QCD Phases IX

HK 36.8: Vortrag

Mittwoch, 1. April 2020, 18:30–18:45, J-HS H

A hydrodynamical model for observed particle correlations in pp collisions — •Seyed Farid Taghavi — Technical University of Munich, Munich, Germany

The observed long-range correlations in pp collision in 2010 lead to an on-going debate about the collectivity in small systems. In the present talk, we introduce a semi-analytic hydrodynamical model to examine the applicability of hydrodynamics in small systems. We show that there is a lower bound for the rms radius of the system proportional to the inverse of the square root of the total energy in the transverse direction. By introducing a rather generic model for the initial state, we compare the outcome of our model with the experimental data. The model can describe the two-particle azimuthal correlation in pp collision. Moreover, it explains the multiplicity dependence of four-particle correlation, at least qualitatively, which has not been produced by other hydrodynamical models so far.

Based on: [arXiv: 1907.12140]

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