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Do R_{AA} and R_{CP} Quantify Nuclear Medium Effects?

With the use of an incoherent binary nucleon-nucleon collision model of heavy ion collisions for simulating particle production, it is demonstrated that the nuclear modification factors, R_{AA} and R_{CP}, are less than unity for hard scattering in the absence of any nuclear modification effects. The nuclear modification factor R_{dAu} is also shown to approach or exceed unity only if p_T broadening is taken into account. With a simple phenomenological parameter, the mean nucleon energy loss fraction, this model yields particle distributions that are comparable to those of experiment. The nuclear geometry is described by the Glauber model, and particle production is simulated by the PYTHIA event generator.

Identiferoai:union.ndltd.org:GEORGIA/oai:digitalarchive.gsu.edu:phy_astr_diss-1027
Date19 November 2008
CreatorsZaballa, Robert Adrian
PublisherDigital Archive @ GSU
Source SetsGeorgia State University
Detected LanguageEnglish
Typetext
Formatapplication/pdf
SourcePhysics and Astronomy Dissertations

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