Exotic hadrons from dynamical clustering of quarks in ultrarelativistic heavy ion collisions

Abstract

Results from a model study on the formation of exotic quark clusters at the hadronization stage of a heavy ion collision are presented. The dynamical quark molecular dynamics (qMD) model which is used is sketched, and results for exotica made of up to six (anti-)quarks are shown. The second part focuses on pentaquarks. The rapidity distribution are shown, and the distribution of strangeness is found to yield an indicator of thermalization and homogenisation of the deconfined quark system. Relative Theta^+ yields are found to be lower than thermal model estimates.

Comments: 4 pages, 5 figures, to appear in the proceedings of Strangeness in Quark Matter 2004 (SQM2004), Cape Town, South Africa, 15-20 September 2004