# Measurement of azimuthal correlations between D mesons with charged particles in pp collisions at $\sqrt{s}$ = 7 TeV with ALICE

## TL;DR

This paper reports on the measurement of azimuthal correlations between D mesons and charged particles in proton-proton collisions at 7 TeV, providing insights into heavy-flavour production and parton shower dynamics.

## Contribution

It presents the first measurement of D meson-charged particle azimuthal correlations in pp collisions at 7 TeV with ALICE, comparing results with p-Pb collisions and Monte Carlo simulations.

## Key findings

- Near-side correlation peak yields are similar in pp and p-Pb collisions.
- Correlation peak widths are compatible within uncertainties across systems.
- Monte Carlo simulations describe the measured correlations adequately.

## Abstract

The azimuthal correlation of D mesons with charged particles in pp collisions at $\sqrt{s}$ = 7 TeV was measured using the ALICE detector at LHC. This measurement allows us to gain insight into heavy-flavour production processes and parton shower. The results are compared with the measurement performed in p-Pb collisions. The yield of charged particles in the near-side correlation peak and the peak width measured in the two collision systems are compatible, within the uncertainties, and described by Monte Carlo simulations.