Abstract :
Through a combination of detector upgrades and advancements in analysis techniques, physicist at RHIC are extending their ability to identify particles at high pT. With these new capabilities some outstanding questions are being addressed: particularly regarding baryon production. Here I present an overview of new data on identified particle elliptic flow (v2), identified particle pT spectra and identified hadron-hadron correlations. The observed phenomena provide insights into hard parton interactions with the bulk matter created in heavy-ion collisions and the relevant degrees-of-freedom during its early stages.
