Does HBT Measure the Freeze-out Source Distribution?

Details Does HBT Measure the Freeze-out Source Distribution? Does HBT Measure the Freeze-out Source Distribution?

2004-03-02

arxiv.org/abs/hep-ph/0403025v1

J.Phys. G30 (2004) S1053-S1058

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, talk presented at QM2004 Conference, January 11-17, 2004, Oakland, California, USA, to be published in the Proceeding

Scientific paper

10.1088/0954-3899/30/8/057

It is generally assumed that as a result of multiple scattering, the source distribution measured in HBT interferometry corresponds to a chaotic source at freeze-out. This assumption is subject to question as effects of multiple scattering in HBT measurements must be investigated within a quantum-mechanical framework. Applying the Glauber multiple scattering theory at high energies and the optical model at lower energies, we find that multiple scattering leads to an effective HBT density distribution that depends on the initial chaotic source distribution with an absorption.

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