Global constraints from RHIC and LHC on transport properties of QCD fluids in CUJET/CIBJET framework Supported by the National Science Foundation (PHY-1352368), IOPP of CCNU Wuhan China, the computations in this study were performed on IU's Big Red II clusters, supported in part by the Lilly Endowment, Inc., through its support for the Indiana University Pervasive Technology Institute, and in part by the Indiana METACyt Initiative. The Indiana METACyt Initiative at IU was also supported in part by the Lilly Endowment, Inc.
Shuzhe Shi (
Physics Department and Center for Exploration of Energy and Matter, Indiana University, 2401 N Milo B. Sampson Lane, Bloomington, IN 47408, USA); Jinfeng Liao (
Physics Department and Center for Exploration of Energy and Matter, Indiana University, 2401 N Milo B. Sampson Lane, Bloomington, IN 47408, USA); Miklos Gyulassy (
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA,
Pupin Lab MS-5202, Department of Physics, Columbia University, New York, NY 10027, USA,
Institute of Particle Physics and Key Laboratory of Quark & Lepton Physics (MOE), Central China Normal University, Wuhan, 430079, China)
We report results of a comprehensive global
analysis of nuclear collision data from RHIC (0.2 ATeV), LHC1 (2.76 ATeV), and recent LHC2 (5.02 ATeV) energies using the updated CUJET framework. The framework consistently combines viscous hydrodynamic fields predicted by VISHNU2+1 (validated with soft
GeV bulk observables) and the DGLV theory of jet elastic and inelastic energy loss generalized to QGP fluids with an sQGMP color structure, including effective semi-QGP color electric quark and gluon as well as emergent color magnetic monopole degrees of freedom constrained by lattice QCD data. We vary the two control parameters of the model (the maximum value of the running QCD coupling,
, and the ratio
of color magnetic to electric screening scales) and calculate the global
compared with available jet fragment observables (
). A global
minimum is found with
and
. Using CIBJET, the event-by-event (ebe) generalization of the CUJET framework, we show that ebe fluctuations in the initial conditions do not significantly alter our conclusions (except for
). An important theoretical advantage of the CUJET and CIBJET frameworks is not only its global
consistency with jet fragment observables at RHIC and LHC and with non-perturbative lattice QCD data, but also its internal consistency of the constrained jet transport coefficient,
, with the near-perfect fluid viscosity to entropy ratio (
) property of QCD fluids near
needed to account for the low
GeV flow observables. Predictions for future tests at LHC with 5.44 ATeV Xe + Xe and 5.02 ATeV Pb + Pb are also presented.
