# Measurement of $D^{*}$-meson triggered correlations in p+p collisions at RHIC

## TL;DR

This paper presents preliminary measurements of azimuthal correlations between $D^{*}$ mesons and charged hadrons in proton-proton collisions at 500 GeV, comparing results with light hadron correlations and PYTHIA predictions, and exploring $D^{*+}$ and $D^{*-}$ correlations.

## Contribution

First measurement of $D^{*}$-hadron azimuthal correlations at RHIC energies, providing insights into heavy-flavor production and jet structure in p+p collisions.

## Key findings

- $D^{*}$-hadron correlations observed at 8-20 GeV/$c$
- Comparison with PYTHIA shows qualitative agreement
- Exploratory $D^{*+}$ and $D^{*-}$ correlation study conducted

## Abstract

We report the preliminary results of the azimuthal correlations between $D^{*\pm}$ mesons and charged hadrons ($D^{*}$-h) measured by the STAR experiment in proton+proton collisions at $\sqrt{s}$ = 500 GeV. Results at mid-rapidity in the transverse-momentum range 8 $\le$ $p^{D^{*}}_{T}$ $\le$ 20 GeV/$c$ are compared with light hadron triggered correlations (h-h) and PYTHIA predictions. We also present an exploratory study of azimuthal correlations between $D^{*+}$ and $D^{*-}$ mesons in p+p collisions. The prospects of measuring heavy-flavor triggered correlations in heavy-ion collisions at RHIC energies are also discussed.