Two-particle angular correlations of mesons and baryons measured in ALICE

Krystian Głuchowski

doi:10.1117/12.2580579

14 October 2020 Two-particle angular correlations of mesons and baryons measured in ALICE

Krystian Głuchowski

Proceedings Volume 11581, Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2020; 1158115 (2020) https://doi.org/10.1117/12.2580579
Event: Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2020, 2020, Wilga, Poland

Abstract

ALICE is one of the four main experiments at the Large Hadron Collider (LHC), mainly focused on heavy-ion collisions in which the Quark-Gluon Plasma (QGP) could be produced. One of the tools to study the properties of the QGP and the process of hadron production are two-particle angular correlations. These correlations are constructed by measuring differences in azimuthal angle (ΔΦ) and differences in pseudorapidity (Δη) between created particles. Two-particle angular correlation functions reported by the ALICE collaboration show a correlation between pairs of mesons for small angular differences. However, pairs of baryons are anti-correlated in short ranges of (Δη, ΔΦ), which is not predicted by any theoretical model. The presented work shows two-particle angular correlations in pp collisions measured by ALICE.

Citation Download Citation

Krystian Głuchowski "Two-particle angular correlations of mesons and baryons measured in ALICE", Proc. SPIE 11581, Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2020, 1158115 (14 October 2020); https://doi.org/10.1117/12.2580579

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