Bose-Einstein correlations for three-dimensionally expanding, cylindrically symmetric, finite systems

T. Csörgő, B. Lörstad

Research output: Contribution to journalArticle

237 Citations (Scopus)

Abstract

There are two types of scales present simultaneously in the spacelike as well as in the timelike directions in a model class describing a cylindrically symmetric, finite, three-dimensionally expanding boson source. One type of scale is related to the finite lifetime or geometrical size of the system, and the other type is governed by the rate of change of the local momentum distribution in the considered temporal or spatial direction. The parameters of the Bose-Einstein correlation function may obey an Mt scaling, as observed in S+Pb and Pb+Pb reactions at CERN SPS. This Mt scaling may imply that the Bose-Einstein correlation functions view only a small part of a large and expanding system. The full sizes of the expanding system at the last interaction are shown to be measurable with the help of the invariant momentum distribution of the emitted particles. A vanishing duration parameter can also be generated, with a specific M, dependence, in the considered model class.

Original languageEnglish
Pages (from-to)1390-1403
Number of pages14
JournalPhysical Review C - Nuclear Physics
Volume54
Issue number3
DOIs
Publication statusPublished - Sep 1996

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momentum
scaling
bosons
life (durability)
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Bose-Einstein correlations for three-dimensionally expanding, cylindrically symmetric, finite systems. / Csörgő, T.; Lörstad, B.

In: Physical Review C - Nuclear Physics, Vol. 54, No. 3, 09.1996, p. 1390-1403.

Research output: Contribution to journalArticle

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