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5-11 February 2017
Hyatt Regency Chicago
America/Chicago timezone

Isolated Photon - Hadron Correlations in Heavy Ion Collisions from PHENIX

Not scheduled
2h 30m
Hyatt Regency Chicago

Hyatt Regency Chicago

151 East Wacker Drive Chicago, Illinois, USA, 60601
Board: I07


Tyler Danley (Ohio University)


Direct photon—jet pairs are produced in the initial hard scattering of an ion collision and the photon is not affected by the quark-gluon plasma, while the jet loses energy. Therefore, photon-jet pairs are good systems for studying jet energy loss event-by-event. Obtaining direct photons is challenging because of the myriad of background photons and typically a statistical subtraction method is used in A+A at RHIC. Instead of a statistical method, we use a direct method to obtain isolated photons by using an isolation cut similar to those used in direct photon identification in p+p collisions. This isolation cut provides for a cleaner sample of direct photons, potentially reducing the systematic uncertainties on direct photon-hadron correlations when compared to the statistical subtraction sample. We present the status of centrality-dependent direct photon-hadron angular correlations and fragmentation functions in A+A using recent high-statistics PHENIX datasets.

Preferred Track Correlations and Fluctuations
Collaboration PHENIX

Primary author

Tyler Danley (Ohio University)

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