Proton to pion ratio at RHIC from dynamical quark recombination

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dc.creatorAyala, Alejandro
dc.creatorMartinez, Mauricio
dc.creatorPaic, Guy
dc.creatorToledo-Sanchez, Genaro
dc.date2008-03-11
dc.date.accessioned2026-07-07T11:49:00Z
dc.date.available2026-07-07T11:49:00Z
dc.descriptionWe propose an scenario to study, from a dynamical point of view, the thermal recombination of quarks in the midsts of a relativistic heavy-ion collision. We coin the term dynamical quark recombination to refer to the process of quark-antiquark and three-quark clustering, to form mesons and baryons, respectively, as a function of energy density. Using the string-flip model we show that the probabilities to form such clusters differ. We apply these ideas to the calculation of the proton and pion spectra in a Bjorken-like scenario that incorporates the evolution of these probabilities with proper time and compute the proton to pion ratio, comparing to recent RHIC data at the highest energy. We show that for a standard choice of parameters, this ratio reaches one, though the maximum is very sensitive to the initial evolution proper time.
dc.descriptionTo appear in the proceedings of the XI Mexican Workshop on Particles and Fields, Tuxtla Gutierrez Chiapas, Mexico, 7-12 Nov. 2007
dc.identifierhttps://arxiv.org/abs/0803.1513
dc.identifierhttp://arxiv.org/abs/0803.1513
dc.identifierAIPConf.Proc.1026:101-108,2008
dc.identifierdoi:10.1063/1.2965030
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203084
dc.subjectHigh Energy Physics - Phenomenology
dc.titleProton to pion ratio at RHIC from dynamical quark recombination
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