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arXiv · hep-ph/0701097

Angular hadron correlations probing the early medium evolution

Thorsten Renk·Kari J. Eskola
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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.

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Thorsten Renk, Kari J. Eskola. 2007-01-12. Angular hadron correlations probing the early medium evolution. https://doi.org/10.1088/0954-3899%2F34%2F8%2Fs68

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