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D mesons in jets analysis in proton-proton collisions at ps = 10 TeV using the ALICE detector at CERN-LHC

Charm and bottom quarks have been proposed as probes to study partonic matter produced in high-energy heavy-ion collisions. The detailed understanding of the production mechanisms in such collisions is of considerable interest. Measurements of the D yield in jets probe the production processes in wh...

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Detalles Bibliográficos
Autores principales: GRELLI, Alessandro, MISCHKE, André
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:http://cds.cern.ch/record/1283497
Descripción
Sumario:Charm and bottom quarks have been proposed as probes to study partonic matter produced in high-energy heavy-ion collisions. The detailed understanding of the production mechanisms in such collisions is of considerable interest. Measurements of the D yield in jets probe the production processes in which the observed D mesons are formed primarily from gluon splitting into c ¯ c or b¯b pairs. The charm content in jets is calculable in perturbative QCD, and the leading non-perturbative correction is expected to be significant at LHC energies. In this contribution we present the first results on performance studies of the reconstruction of charged D mesons in jets in proton-proton collisions at ps = 10 TeV using the ALICE central detector. D mesons are reconstructed through the decay sequence D + !D0p+ and D0 !K􀀀p+ (and its charge conjugate channel). The results are compared for different jet transverse momenta, and topological cut effects are discussed. The