Strangeness enhancement from strong color fields at RHIC

  • 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 (ps = 200 AGeV). Relative to p+p collisions, a factor of 60, 20 and 7 enhancement respectively, for (sss), (ss), and , (s) is predicted for a model with increased color electric field strength.

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Author:Marcus BleicherORCiDGND, Walter GreinerGND, Horst StöckerORCiDGND, Nu Xu
Document Type:Preprint
Date of Publication (online):2005/11/22
Year of first Publication:2000
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2005/11/22
Tag:Quark; Ultrarelativistisches Quant Molekular Dynamik; UrQMD; schwere Ion Kollision
Ultra-relativistic Quantum Molecular Dynamic; UrQMD; heavy ion collision; quark
Source:Phys.Rev.C62:061901,2000. [hep-ph/0007215], LBNL-preprint: LBNL-46167
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht