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

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

2001-09-19

arxiv.org/abs/nucl-th/0109055v2

Phys.Rev.Lett. 88 (2002) 072301

Physics

Nuclear Physics

Nuclear Theory

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.88.072301

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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