Interferometry for Particle emitting Source of High Baryon Density
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Graphical Abstract
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Abstract
Using quantum pathintegral formulae，we examined the twokaon and twopion HanburyBrownTwiss (HBT) interferometry for the particleemitting source with high baryon density. The evolution of the source is described by relativistic hydrodynamics. We use an equation of state of firstorder transition from QGP to hadronic phase and consider a volume correction for the hadronic gas. The twopion HBT results with effects of excitedparticle decay and multiple scattering were investigated and compared with those for conventional thermal freezeout (TFO) model. We found that the twokaon HBT radius was smaller than those of the twopion interferometry. The particle decay increases the HBT radius and lifetime， while the effect of multiple scattering on HBT results can be neglected.
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