Kaon Interferometry: A Sensitive Probe of the QCD Equation of State?

Abstract

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.

4 pages, 2 figures

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• Pion Interferometry of $\sqrt{s_{NN}}=130$ GeV Au+Au Collisions at RHIC
• Pion Interferometry at RHIC: Probing a thermalized Quark-Gluon-Plasma?
• Explosive Decomposition in Ultrarelativistic Heavy Ion Collision
• Two-kaon correlations in central Pb + Pb collisions at 158 A GeV/c
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• Kaon interferometric probes of space-time evolution in Au+Au collisions at sqrt(s_NN) = 200 GeV
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• (Strange) Meson Interferometry at RHIC
• Particle Correlations at RHIC - Scrutiny of a Puzzle
• Effects of hadronic mean-field potentials on Hanbury-Brown-Twiss correlations in relativistic heavy-ion collisions
• News on Strangeness at Ultrarelativistic Energies - Review of Microscopic Models
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