Effects of multipion correlations on the source distribution in ultrarelativistic heavy-ion collisions

Zhang, Q. H.

doi:10.1103/physrevc.57.877

Cited by 7 publications

(13 citation statements)

References 17 publications

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“…the coefficients g (m) q and g (m) K can then be obtained from simple recursion relations [ 192]. Two generic features are observed in all these studies [ 185,128,51,188,176]:…”

Section: Results Of Model Studiesmentioning

confidence: 99%

“…Model studies [ 128,130,38,39,51,188,191] indicate that irrespective of the particular multiplicity distribution the general features discussed below (2.86) persist: compared to the input distribution S wp (x, K), the multiparticle symmetrized emission function S(x, K) is more strongly localized in both coordinate and momentum space. For the intercept parameter λ one finds results which depend on the specific choice for the multiplicity distribution.…”

Section: Bose-einstein Effects and Multiplicity Distributionsmentioning

confidence: 99%

“…An alternative strategy can be applied to a small class of simple (Gaussian) models, where one can control the m-dependence of G m analytically or via simple recursion schemes. Especially for Gaussian emission functions, (2.66) allows for simple one-step recursion relations [ 128,130,39,188] between G n+1 and G n which can be solved analytically [ 192].…”

Section: The Pratt Formalismmentioning

confidence: 99%

“…So far we only discussed multiparticle symmetrization effects for events with fixed multiplicity N. The question to what extent multipion correlations are also reflected in the multiplicity distributions was asked already in the seventies [ 67]. Recently, it was revived in the context of Pratt's formalism [ 128,51,188] with the aim to calculate the effect of Bose-Einstein statistics on the particle production process. These applications typically start [ 128,192,188] from a multiplicity distribution p (0) n in the absence of Bose-Einstein statistics, for example a Poisson distribution p (0) n = n n 0 n!…”

Section: Bose-einstein Effects and Multiplicity Distributionsmentioning

confidence: 99%

“…Recently, it was revived in the context of Pratt's formalism [ 128,51,188] with the aim to calculate the effect of Bose-Einstein statistics on the particle production process. These applications typically start [ 128,192,188] from a multiplicity distribution p (0) n in the absence of Bose-Einstein statistics, for example a Poisson distribution p (0) n = n n 0 n! exp[−n 0 ] with average multiplicity n 0 .…”

Section: Bose-einstein Effects and Multiplicity Distributionsmentioning

confidence: 99%

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Particle interferometry for relativistic heavy-ion collisions

1999

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In this report we give a detailed account on Hanbury Brown/Twiss (HBT) particle interferometric methods for relativistic heavy-ion collisions. These exploit identical two-particle correlations to gain access to the space-time geometry and dynamics of the final freeze-out stage. The connection between the measured correlations in momentum space and the phase-space structure of the particle emitter is established, both with and without final state interactions. Suitable Gaussian parametrizations for the two-particle correlation function are derived and the physical interpretation of their parameters is explained. After reviewing various model studies, we show how a combined analysis of single-and two-particle spectra allows to reconstruct the final state of relativistic heavy-ion collisions.

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“…the coefficients g (m) q and g (m) K can then be obtained from simple recursion relations [ 192]. Two generic features are observed in all these studies [ 185,128,51,188,176]:…”

Section: Results Of Model Studiesmentioning

confidence: 99%

Section: Bose-einstein Effects and Multiplicity Distributionsmentioning

confidence: 99%

Section: The Pratt Formalismmentioning

confidence: 99%

Section: Bose-einstein Effects and Multiplicity Distributionsmentioning

confidence: 99%

Section: Bose-einstein Effects and Multiplicity Distributionsmentioning

confidence: 99%

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Particle interferometry for relativistic heavy-ion collisions

1999

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Multiboson Effects in Bose–Einstein Interferometry and the Multiplicity Distribution

2001

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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. C

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Multiboson effects and the normalization of the two-pion correlation function

1998

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The two-pion correlation function can be defined as a ratio of either the measured momentum distributions or the normalized momentum space probabilities. We show that the first alternative avoids certain ambiguities since then the normalization of the two-pion correlator contains important information on the multiplicity distribution of the event ensemble which is lost in the second alternative. We illustrate this explicitly for specific classes of event ensembles.PACS numbers: 25.75.Gz, 25.70.Pq.

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Effects of multipion correlations on the source distribution in ultrarelativistic heavy-ion collisions

Cited by 7 publications

References 17 publications

Particle interferometry for relativistic heavy-ion collisions

Particle interferometry for relativistic heavy-ion collisions

Multiboson Effects in Bose–Einstein Interferometry and the Multiplicity Distribution

Multiboson effects and the normalization of the two-pion correlation function

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