Overpopulation of $\bar Ω$ in pp collisions: a way to distinguish statistical hadronization from string dynamics

Details Overpopulation of $\bar Ω$ in pp collisions: a way to distinguish statistical hadronization from string dynamics Overpopulation of $\bar Ω$ in pp collisions: a way to distinguish statistical hadronization from string dynamics

2001-11-15

arxiv.org/abs/hep-ph/0111187v1

Phys.Rev.Lett. 88 (2002) 202501

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.88.202501

The $\bar{\Omega}/\Omega$ ratio originating from string decays is predicted to be larger than unity in proton proton interactions at SPS energies ($E_{\rm lab}$=160 GeV). The anti-omega dominance increases with decreasing beam energy. This surprising behavior is caused by the combinatorics of quark-antiquark production in small and low-mass strings. Since this behavior is not found in a statistical description of hadron production in proton proton collisions, it may serve as a key observable to probe the hadronization mechanism in such collisions.

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