Nuclear Physics Seminar

"Direct Photon Production in Au+Au collisions at 200GeV"

Presented by Wenqing Fan, Stony Brook University

Tuesday, March 3, 2020, 11:00 am — Small Seminar Room, Bldg. 510

The PHENIX experiment operates as one of the major detectors at the RHIC collider to identify and study Quark Gluon Plasma (QGP). Direct photons have long been considered as unique probes to study properties of QGP due to their small interaction cross section with the collision produced medium, hence carrying direct information of their creation point. Taking advantage of the precise tracking system and high granularity electromagnetic calorimeter, PHENIX has made comprehensive measurements of direct photons across different collision species and a wide range of beam energies. In this talk I will show new measurements with high statistics Au+Au data taken in 2014 at 200GeV using the photon conversions at the silicon vertex detector (VTX). This dataset provides a 10-fold increase in statistics for the measurements of direct photon yields and their anisotropy.

Hosted by: Rongrong Ma

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