Competition of heavy quark radiative and collisional energy loss in deconfined matter
Pol-Bernard GossiauxSUBATECH, Université de Nantes, EMN, IN2P3/CNRS, 4 rue Alfred Kastler, 44307 Nantes cedex 3, FranceJoerg AichelinSUBATECH, Université de Nantes, EMN, IN2P3/CNRS, 4 rue Alfred Kastler, 44307 Nantes cedex 3, FranceThierry GoussetSUBATECH, Université de Nantes, EMN, IN2P3/CNRS, 4 rue Alfred Kastler, 44307 Nantes cedex 3, FranceVincent GuihoSUBATECH, Université de Nantes, EMN, IN2P3/CNRS, 4 rue Alfred Kastler, 44307 Nantes cedex 3, France
2010en
ABI
Аннотация
Abstract\nWe extend our recently advanced model on collisional energy loss of heavy quarks in a quark gluon plasma (QGP) by including radiative energy loss. We discuss the approach and present first preliminary results, including a comparison of the role of both types of energy loss for experimental data. We draw the conclusion that the present nuclear modification factor R AA data on non-photonic single electrons does not permit to " select " between this two types of energy-loss mechanisms.
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