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


Poster Jets and High Momentum Hadrons Poster session


Annika Ewigleben (Lehigh University)


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
Track Jets and High Momentum Hadrons
Collaboration (if applicable) STAR

Primary author

Presentation materials