Nuclear geometry of jet quenching |
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Authors: | IP Lokhtin AM Snigirev |
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Institution: | (1) M.V. Lomonosov Moscow State University, D.V. Skobeltsyn Institute of Nuclear Physics, Moscow, Russia , RU |
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Abstract: | The most suitable way to study jet quenching as a function of the distance traversed is varying the impact parameter b of the ultrarelativistic nucleus–nucleus collision (the initial energy density in the nuclear overlapping zone is almost
independent of b up to ). It is shown that the b-dependences of the medium-induced radiative and collisional energy losses of a hard parton jet propagating through dense
QCD matter are very different. The experimental verification of this phenomenon could be performed for a jet with non-zero
cone size based on the essential difference between the angular distributions of the collisional and radiative energy losses.
Received: 10 February 2000 / Revised version: 18 April 2000 / Published online: 6 July 2000 |
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