Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: How to extract physics from HBT radius parameters   I review recent progress in the understanding of the connection between the
space-time structure of the particle emitting source and the form of the
two-particle correlation function in momentum space. Based on a new scheme for
calculating the HBT radius parameters from the emission function, strategies
are suggested to separate for rapidly expanding sources the information on the
spatial and temporal structure of the source. To this end a new fitting
function for the two-particle correlation function is proposed. Its usefulness
is demonstrated for a typical expanding model source, and it is shown how the
dependence of the resulting fit parameters on the momentum of the particle pair
can be used to measure the longitudinal and transverse expansion of the source.

22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex