Gluon Tomography with EVMP

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Presentation transcript:

Gluon Tomography with EVMP W. A. Horowitz University of Cape Town June 30, 2011 With many thanks to Elke, Thomas, Raju, Tuomas, ... 8/27/2019 EIC Task Force Meeting

Motivation 4 fundamental forces QCD is only exp. accessible & non-Abel. What are the properties of thermalized QCD matter produced at RHIC and LHC? cs, h/s, qhat, ... Extracting these quantities requires understanding of medium geometry Hydro requires IC: medium quantities depend sensitively on IC 8/27/2019 EIC Task Force Meeting

h/s Extraction Factor at least 2 uncertainty in h/s from IC Naive pQCD => h/s ~ 1 Naive AdS/CFT => h/s ~ 1/4p Teaney, Users’ Meeting 2011 8/27/2019 EIC Task Force Meeting

Measuring the IC eRHIC: exp. meas. of initial glue? Recall e + A diffraction exps. on A at rest Yielded Woods-Saxon distribution! Hahn, Ravenhall, and Hofstadter, Phys Rev 101 (1956) 8/27/2019 EIC Task Force Meeting

Gluon Distribution of A at x ~ 10-3 e J/y A g* Coherent vector meson production in e + A 2 gluon exchange => mean & fluc. Must reject incoherent collisions at ~100% WAH, arXiv:1102.5058 8/27/2019 EIC Task Force Meeting