K/π ratios in relativistic nuclear collisions : a signature for the quark-gluon plasma?

  • Collisions of Si(14.5A GeV+Au are investigated in the relativistic-quantum-molecular-dynamics approach. The calculated pseudorapidity distributions for central collisions compare well with recent experimental data, indicating a large degree of nuclear stopping and thermalization. Nevertheless, nonequilibrium effects play an important role in such complex multihadron reactions: They lead to a strong enhancement of the total kaon production cross sections, in good agreement with the experimental data, without requiring the formation of a deconfined quark-gluon plasma.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Author:Raffaele Mattiello, Heinz Sorge, Horst StöckerORCiDGND, Walter GreinerGND
Parent Title (German):Physical review letters
Document Type:Article
Date of Publication (online):2006/06/20
Year of first Publication:1989
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/06/20
Page Number:4
First Page:1459
Last Page:1462
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
PACS-Classification:10.00.00 THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (for experimental methods and instrumentation for elementary-particle physics, see section 29) / 12.00.00 Specific theories and interaction models; particle systematics / 12.38.-t Quantum chromodynamics; Quarks, gluons, and QCD in nuclear reactions, see 24.85.+p / 12.38.Mh Quark-gluon plasma (see also 25.75.Nq Quark deconfinement, quark-gluon plasma production and phase transitions in relativistic heavy ion collisions; see also 21.65.Qr Quark matter)
Licence (German):License LogoDeutsches Urheberrecht