Exploring Hot-QCD Matter Properties with Jets 

Speaker: Prof. Joern Putschke 

Department of Physics and Astronomy, Wayne State University 

Abstract: I will discuss recent progress of jet sub-structure measurements in proton-proton and in heavy-ion collisions which can provide crucial information about the mechanism of jet quenching in the hot and dense QCD medium created in these collisions and about its properties over a wide range of distance scales. The emphasis in this talk will be on measurements at RHIC energies with the STAR detector and how these measurements will inform the jet program at the future dedicated jet experiment sPHENIX, currently under construction and expected to take data in 2023.  

 Biography: Ph.D. Max-Planck-Institute (Munich) in 2004, elliptic flow and particle multiplicities at forwarding rapidities in d+Au and Au+Au with the Forward-TPC’s in STAR. Postdoc LBL and Yale (2005-2011), the discovery of what is now commonly referred to as the (high-pT) “ridge” in Au+Au collisions, first jet measurements in STAR (STAR jet working group convener) and ALICE-USA EMCal jet working group coordinator (CDR, TDR, and PPR). Since 2011 faculty (Assoc. Prof.) at Wayne State University (ALICE jet working group convener, 2015-2017). My group performed jet and di-jet measurements in pPb and the first jet mass measurement in pPb and PbPb in ALICE, as well as the first Au+Au Di-Jet imbalance and jet splitting function measurement at RHIC in STAR. Member of the sPhenix collaboration and Co-PI of the JETSCAPE/XSCAPE (Theory and Experiment) collaboration (lead software designer of the JetScape framework). Member of the community White Paper writing committee(s) (“Hot and Dense QCD Matter” and “The Hot QCD White Paper: Exploring the Phases of QCD at RHIC and the LHC”). The organizer of the jet and heavy-flavor INT program in 2017, QM 2017, and various (jet) workshops at Wayne State, AGS Users Meeting(s), and RBRC.