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Article Dans Une Revue Journal of High Energy Physics Année : 2004

Photon tagged correlations in heavy ion collisions

Résumé

A detailed study of various two-particle correlation functions involving photons and neutral pions is presented in proton-proton and lead-lead collisions at the LHC energy. The aim is to use these correlation functions to quantify the effect of the medium (in lead-lead collisions) on the jet decay properties. The calculations are carried out at the leading order in QCD but the next-to-leading order corrections are also discussed. The competition between different production mechanisms makes the connection between the jet energy loss spectrum and the gamma-pi correlations somewhat indirect while the gamma-gamma correlations have a clearer relation to the jet fragmentation properties.

Dates et versions

hal-00004123 , version 1 (02-02-2005)

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Francois Arleo, Patrick Aurenche, Zouina Belghobsi, Jean-Philippe Guillet. Photon tagged correlations in heavy ion collisions. Journal of High Energy Physics, 2004, 0411, pp.009. ⟨hal-00004123⟩
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