Statistical hadronization with exclusive channels in e+e- annihilation

Details Statistical hadronization with exclusive channels in e+e- annihilation Statistical hadronization with exclusive channels in e+e- annihilation

2011-09-23

arxiv.org/abs/1109.5185v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, 12 figures

Scientific paper

We perform a systematic analysis of exclusive hadronic channels in e+e- collisions at centre-of-mass energies between 2.1 and 2.6 GeV within the statistical hadronization model. Because of the low multiplicities involved, calculations have been carried out in the full microcanonical ensemble, including conservation of energy-momentum, angular momentum, parity, isospin, and all relevant charges. We show that the data is in an overall good agreement with the model for an energy density of about 0.5 GeV/fm^3 and an extra strangeness suppression parameter gamma_S ~ 0.7, essentially the same values found with fits to inclusive multiplicities at higher energy.

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