Kaon interferometry : a sensitive probe of the QCD equation of state?

  • We calculate the kaon HBT radius parameters for high energy heavy ion collisions, assuming a first order phase transition from a thermalized Quark-Gluon-Plasma to a gas of hadrons. At high transverse momenta K_T ~ 1 GeV/c direct emission from the phase boundary becomes important, the emission duration signal, i.e., the R_out/R_side ratio, and its sensitivity to T_c (and thus to the latent heat of the phase transition) are enlarged. Moreover, the QGP+hadronic rescattering transport model calculations do not yield unusual large radii (R_i<9fm). Finite momentum resolution effects have a strong impact on the extracted HBT parameters (R_i and lambda) as well as on the ratio R_out/R_side.

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Metadaten
Author:Sven SoffORCiD, Steffen A. BassORCiDGND, David H. Hardtke, Sergey Y. Panitkin
URN:urn:nbn:de:hebis:30-6842
URL:http://de.arxiv.org/abs/nucl-th/0109055
ArXiv Id:http://arxiv.org/abs/0109055
Document Type:Report
Language:English
Date of Publication (online):2005/04/13
Year of first Publication:2002
Publishing Institution:Universit├Ątsbibliothek Johann Christian Senckenberg
Release Date:2005/04/13
Source:http://de.arxiv.org/abs/nucl-th/0109055 , Report-no: LBNL-48942
HeBIS-PPN:128783370
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht