English

Strangeness enhancement from strong color fields at RHIC

High Energy Physics - Phenomenology 2009-10-31 v1

Abstract

In ultra-relativistic heavy ion collisions, early stage multiple scatterings may lead to an increase of the color electric field strength. Consequently, particle production - especially heavy quark (and di-quark) production - is greatly enhanced according to the Schwinger mechanism. We test this idea via the Ultra-relativistic Quantum Molecular Dynamics model (UrQMD) for Au+Au collisions at the full RHIC energy (s=200\sqrt{s} = 200 AGeV). Relative to p+p collisions, a factor of 60, 20 and 7 enhancement respectively, for Ω\Omega (ssssss), Ξ\Xi (ssss), and Λ\Lambda, Σ\Sigma (ss) is predicted for a model with increased color electric field strength.

Keywords

Cite

@article{arxiv.hep-ph/0007215,
  title  = {Strangeness enhancement from strong color fields at RHIC},
  author = {M. Bleicher and W. Greiner and H. Stöcker and N. Xu},
  journal= {arXiv preprint arXiv:hep-ph/0007215},
  year   = {2009}
}