Space-time extensions from space-time densities and Bose-Einstein correlations

Abstract

Using a (3+1)-dimensional solution of the relativistic Euler-equations for $Pb+Pb$ at 160 $AGeV$, space-time extensions of kaon emission zones are calculated from space-time densities and compared to the inverse widths of two-kaon Bose-Einstein correlation functions. The comparison shows a satisfactory agreement and it is concluded that because of the Gaussian shape of the kaon correlation functions, the space-time parameters of the kaon source can be calculated directly from space-time densities. In the case of intensity interferometry of identical pions this simplification is not recommended when applying Gaussian fits because of the present strong effects of resonance decays. The whole discussion is based on the assumption that hadron emission in ultra-relativistic heavy-ion collisions is purely chaotic or that coherence is at least negligible.

11 pages, 2 figures (distributed on 3 Postscript files)

References in corpus (5)

• Transverse Momentum Dependence of Hanbury-Brown/Twiss Correlation Radii
• Hydrodynamical analysis of single inclusive spectra and Bose-Einstein correlations for $Pb+Pb$ at 160 AGeV
• Hydrodynamical analysis of symmetric nucleus-nucleus collisions at CERN/SPS energies
• Interferometry with Resonances and Flow in High-Energy Nuclear Collisions
• Numerical Study of Spectrum and HBT Radii for Three-Dimensionally Expanding, Cylindrically Symmetric, Finite Systems

Cited by in corpus (6)

• Particle Interferometry for Relativistic Heavy-Ion Collisions
• Boson Interferometry in High Energy Physics
• Resonance contributions to HBT correlation radii
• Extracting the Equation of State of Nuclear Matter through Hydrodynamical Analysis
• Numerical analysis of two-pion correlation based on a hydrodynamical model
• The Linear Correlation Coefficient vs. the Cross Term in Bose-Einstein Correlations