Multiboson Effects in Bose-Einstein Interferometry and the Multiplicity Distribution

U. Heinz, P. Scotto, Qinghui Zhang

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Multiboson symmetrization effects on two-particle Bose-Einstein interferometry are studied for ensembles with arbitrary multiplicity distributions. This generalizes the previously studied case of a Poissonian input multiplicity distribution. In the general case we find interesting residual correlations which require a modified framework for extracting information on the source geometry from two-particle correlation measurements. In sources with high phase-space densities, multiboson effects modify the Hanbury Brown-Twiss (HBT) radius parameters and simultaneously generate strong residual correlations. We clarify their effect on the correlation strength (intercept parameter) and thus explain a variety of previously reported puzzling multiboson symmetrization phenomena. Using a class of analytically solvable Gaussian source models, with and without space-momentum correlations, we present a comprehensive overview of multiboson symmetrization effects on particle interferometry. For event ensembles of (approximately) fixed multiplicity, the residual correlations lead to a minimum in the correlation function at nonzero relative momentum, which can be practically exploited to search, in a model-independent way, for multiboson symmetrization effects in high-energy heavy-ion experiments.

Original languageEnglish (US)
Pages (from-to)325-360
Number of pages36
JournalAnnals of Physics
Volume288
Issue number2
DOIs
StatePublished - Mar 15 2001

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interferometry
momentum
space density
heavy ions
radii
geometry
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Multiboson Effects in Bose-Einstein Interferometry and the Multiplicity Distribution. / Heinz, U.; Scotto, P.; Zhang, Qinghui.

In: Annals of Physics, Vol. 288, No. 2, 15.03.2001, p. 325-360.

Research output: Contribution to journalArticle

Heinz, U. ; Scotto, P. ; Zhang, Qinghui. / Multiboson Effects in Bose-Einstein Interferometry and the Multiplicity Distribution. In: Annals of Physics. 2001 ; Vol. 288, No. 2. pp. 325-360.
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