Jun 17 – 21, 2019
Europe/Budapest timezone

Study of angular correlations in Monte Carlo simulations

Jun 18, 2019, 11:20 AM


Balázs Endre Szigeti (MTA Wigner FK)


In two-particle angular correlation measurements, the distribution of charged hadron pairs is evaluated as a function of pseudorapidity (∆η) and azimuthal (∆φ) differences. In these correlations, jets manifest themselves as a near-side peak around ∆η = 0, ∆φ = 0. These correlations can be used to extract transverse momentum (pT ) and centrality dependence of the shape of the near-side peak in Pb-Pb collision. The shape of the near-side peak is quantified by the variances of the distribution. The variances are evaluated from a fit combining the peak and the background. In this contribution, identified and unidentified angular correlations are shown from Pb-Pb collisions at $\sqrt{s_{NN}}$ =2.76 TeV from Monte Carlo simulations (AMPT, PYTHIA 8.235/Angantyr). Results show that transport models in AMPT give better results than PYTHIA 8.235/Angantyr when comparing to the experimental results of the ALICE collaboration.

Primary author

Balázs Endre Szigeti (MTA Wigner FK)

Presentation materials