# 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

May 31, 2020 to June 5, 2020
Online
US/Central timezone

## Direct Photon and π0 Identification in Au+Au Collisions at √sNN= 200 GeV in the STAR Experiment

Jun 2, 2020, 7:30 AM
1h 20m
Online

#### Online

Poster Jets and High Momentum Hadrons

### Speaker

Annika Ewigleben (Lehigh University)

### Description

Jets recoiling from a direct-photon have long been seen as a golden probe of the quark gluon plasma created in relativistic heavy ion collisions, due to the ability to tightly constrain the initial hard scattering kinematics. Until recently, the ability to measure this channel and the ensuing observables at RHIC were largely statistics-limited, owing to the small cross-section of direct photon production compared to, for example, the most abundant di-jet cross-section. In this poster, we will present methods for identifying direct photons and $\pi^0$, using the 13 nb$^{-1}$ of $\sqrt{s_{NN}} = 200$ GeV Au+Au data recorded in 2014 by the STAR experiment.

Contribution type Poster Jets and High Momentum Hadrons STAR

### Presentation materials

 Ewigleben_HP2020.pdf Zoom Meeting Link ID#253, Annika Ewigleben