A1 Journal article (refereed)
Azimuthal correlations of heavy-flavor hadron decay electrons with charged particles in pp and p–Pb collisions at √sNN = 5.02 TeV (2023)

ALICE Collaboration. (2023). Azimuthal correlations of heavy-flavor hadron decay electrons with charged particles in pp and p–Pb collisions at √sNN = 5.02 TeV. European Physical Journal C, 83, Article 741. https://doi.org/10.1140/epjc/s10052-023-11835-x

JYU authors or editors

Publication details

All authors or editors: ALICE Collaboration

Journal or series: European Physical Journal C

ISSN: 1434-6044

eISSN: 1434-6052

Publication year: 2023

Publication date: 22/08/2023

Volume: 83

Article number: 741

Publisher: Springer

Publication country: Germany

Publication language: English

DOI: https://doi.org/10.1140/epjc/s10052-023-11835-x

Research data link: https://www.hepdata.net/record/ins2637679

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/88986

Web address of parallel published publication (pre-print): https://arxiv.org/abs/2303.00591

Abstract

The azimuthal (Δφ) correlation distributions between heavy-flavor decay electrons and associated charged particles are measured in pp and p–Pb collisions at √sNN=5.02 TeV. Results are reported for electrons with transverse momentum 4<16 GeV/c and pseudorapidity |η|<0.6. The associated charged particles are selected with transverse momentum 1<7GeV/c, and relative pseudorapidity separation with the leading electron |Δη|<1. The correlation measurements are performed to study and characterize the fragmentation and hadronization of heavy quarks. The correlation structures are fitted with a constant and two von Mises functions to obtain the baseline and the near- and away-side peaks, respectively. The results from p–Pb collisions are compared with those from pp collisions to study the effects of cold nuclear matter. In the measured trigger electron and associated particle kinematic regions, the two collision systems give consistent results. The Δφ distribution and the peak observables in pp and p–Pb collisions are compared with calculations from various Monte Carlo event generators.

Keywords: particle physics

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Ministry reporting: Yes

Reporting Year: 2023

JUFO rating: 2