Angular hadron correlations probing the early medium evolution

Abstract

Hard processes are a well calibrated probe to study heavy-ion collisions. However, the information to be gained from the nuclear suppression factor R_AA is limited, hene one has to study more differential observables to do medium tomography. The angular correlations of hadrons associated with a hard trigger appear suitable as they show a rich pattern when going from low p_T to high p_T. Of prime interest is the fate of away side partons with an in-medium pathlength O(several fm). At high p_T the correlations become dominated by the punchtrough of the away side parton with subsequent fragmentation. We discuss what information about the medium density can be gained from the data.

Talk given at the 19th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions: Quark Matter 2006 (QM 2006), Shanghai, China, 14-20 Nov 2006

References in corpus (12)

• Radiative energy loss and $p_{\perp }$-broadening of high energy partons in nuclei
• Reaction Operator Approach to Non-Abelian Energy Loss
• Multiple Collisions and Induced Gluon Bremsstrahlung in QCD
• Radiative energy loss of high energy quarks in finite-size nuclear matter and quark-gluon plasma
• Gluon Radiation off Hard Quarks in a Nuclear Environment: Opacity Expansion
• Multiple Parton Scattering in Nuclei: Parton Energy Loss
• Calculating Quenching Weights
• A Dynamical Scaling Law for Jet Tomography
• Jet Quenching
• RHIC-tested predictions for low-$p_T$ and high-$p_T$ hadron spectra in nearly central Pb+Pb collisions at the LHC
• Towards jet tomography: gamma-hadron correlations
• A model for the spacetime evolution of heavy-ion collisions at RHIC

Cited by in corpus (1)

• Hydrodynamic Description of Heavy Ion Collisions