Abstract
In this contribution a first STAR measurement on two heavy-flavor particle correlations in p+p collisions at RHIC is presented. Heavy-flavor (charm and bottom) events are identified and separated on a statistical basis by the azimuthal correlation of their decay electrons and open charm mesons, which provide decisive information about the underlying production process. The azimuthal correlation distribution exhibits a two-peak structure which can be attributed to B decays on the near side and predominantly charm pair production on the away side. These assumptions are supported by dedicated simulations using PYTHIA and MC@NLO event generators. This new correlation method has the potential for comprehensive energy loss measurements of heavy quarks in heavy-ion collisions.
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P. Braun-Munzinger
Original article based on material presented at HADRON 2007.
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Mischke, A. Recent STAR results on heavy-flavor correlation measurements using leading electrons. Eur. Phys. J. A 38, 159–162 (2008). https://doi.org/10.1140/epja/i2008-10629-y
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DOI: https://doi.org/10.1140/epja/i2008-10629-y