Source Function Determined from HBT Correlations by the Maximum Entropy Principle

Details Source Function Determined from HBT Correlations by the Maximum Entropy Principle Source Function Determined from HBT Correlations by the Maximum Entropy Principle

1996-07-18

arxiv.org/abs/nucl-th/9607037v1

Physics

Nuclear Physics

Nuclear Theory

12 pages, revtex

Scientific paper

We study the reconstruction of the source function in space-time directly from the measured HBT correlation function using the Maximum Entropy Principle. We find that the problem is ill-defined without at least one additional theoretical constraint as input. Using the requirement of a finite source lifetime for the latter we find a new Gaussian parametrization of the source function directly in terms of the measured HBT radius parameters and its lifetime, where the latter is a free parameter which is not directly measurable by HBT. We discuss the implications of our results for the remaining freedom in building source models consistent with a given set of measured HBT radius parameters.

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