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


Journal Article

We calculate the kaon-interferometry radius parameters for high-energy heavy-ion collisions, assuming a first-order phase transition from a thermalized quark-gluon plasma (QGP) to a gas of hadrons. At high transverse momenta K(T) approximately 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) are enlarged. The QGP+hadronic rescattering transport model calculations do not yield unusually large radii (R(i) < or = 9 fm). Finite-momentum-resolution effects have a strong impact on the extracted interferometry parameters ( R(i) and lambda), as well as on the ratio R(out)/R(side).

Full Text

Duke Authors

Cited Authors

  • Soff, S; Bass, SA; Hardtke, DH; Panitkin, SY

Published Date

  • February 4, 2002

Published In

Volume / Issue

  • 88 / 7

Start / End Page

  • 072301 -

PubMed ID

  • 11863888

Pubmed Central ID

  • 11863888

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.88.072301


  • eng