Can high-$p_{\perp }$ theory and data constrain $\eta /s$?

Abstract

Understanding the temperature dependence of the specific shear viscosity $(\eta /s)$ is crucial for characterizing the properties of the QCD matter produced in ultrarelativistic heavy-ion collisions. Since, low-$p_{\perp }$ theory and data are only weakly sensitive to the typical forms of $\eta /s(T)$, especially at high temperatures, we use high-$p_{\perp }$ data and theory to impose additional constraints on it. Our approach, based on dynamical radiative and collisional energy loss of high-$p_{\perp }$ particles, provides promising results in constraining the temperature dependence of $\eta /s$.

arXiv commentATHIC conference proceedings

References in corpus (6)

• Causal viscous hydrodynamics in 2+1 dimensions for relativistic heavy-ion collisions
• Extracting jet transport coefficient from jet quenching at RHIC and LHC
• Temperature dependence of $\eta /s$ of strongly interacting matter: effects of the equation of state and the parametric form of $(\eta /s)(T)$
• DREENA-A framework as a QGP tomography tool
• Constraining $\eta /s$ through high-p${}_{\perp }$ theory and data
• $\eta /s-\hat{q}/T^3$ Relation at Next-to-Leading Order in QCD