Multi-pion Bose-Einstein correlation effects on two-pion interferometry

Chao, W. Q.; Gao, C.; Zhang, Q. H.

doi:10.1088/0954-3899/21/6/012

Cited by 35 publications

(79 citation statements)

References 36 publications

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“…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%

“…in Ref. [ 39]. Zimányi and Csörgő [ 192] have tried to give this modification a simple physical interpretation by noting that the factor Ψ N |Ψ N can be interpreted as an enhanced emission probability for bosons (described by normalized wave packets) which are emitted close to each other in phase-space.…”

Section: Multiparticle Correlations For Wave Packetsmentioning

confidence: 99%

“…where ω(k) is given in (2.70). For this particular multiplicity distribution, the multiplicity averaged one-and two-particle spectra are given by the simple expressions [ 38,39,192,191]…”

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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Section: Bose-einstein Effects and Multiplicity Distributionsmentioning

confidence: 99%

Section: The Pratt Formalismmentioning

confidence: 99%

Section: Multiparticle Correlations For Wave Packetsmentioning

confidence: 99%

“…where ω(k) is given in (2.70). For this particular multiplicity distribution, the multiplicity averaged one-and two-particle spectra are given by the simple expressions [ 38,39,192,191]…”

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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“…Last but not least the fact that this broadening increases with n is not due, as one might be mislead to believe from [219], [220], to the approach to "lasing criticality", but simply to the fact that the larger n the larger the number of independent emitters is and the better the central limit theorem applies. This theorem states (cf.…”

Section: The Wave Function Formalism; "Pasers"?mentioning

confidence: 99%

Boson interferometry in high-energy physics

2000

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Intensity interferometry and in particular that due to Bose Einstein correlations (BEC) constitutes at present the only direct experimental method for the determination of sizes and lifetimes of sources in particle and nuclear physics. The measurement of these is essential for an understanding of the dynamics of strong interactions which are responsible for the existence and properties of atomic nuclei.Moreover a new state of matter, quark matter, in which the ultimate constituents of matter move freely, is within the reach of present accelerators or those under construction. The confirmation of the existence of this new state is intimately linked with the determination of its space-time properties. Furthermore BEC provides information about quantum coherence which lies at the basis of the phenomenon *

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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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Multi-pion Bose-Einstein correlation effects on two-pion interferometry

Abstract: A general derivation of the multi-pion correlation function for completely chaotic source is given. Its effects on the pion multiplicity distribution, twopion interferometry are studied. A generalized multi-pion correlation function for a partially coherent source is also discussed.

Cited by 35 publications

References 36 publications

Particle interferometry for relativistic heavy-ion collisions

Particle interferometry for relativistic heavy-ion collisions

Boson interferometry in high-energy physics

Multiboson Effects in Bose–Einstein Interferometry and the Multiplicity Distribution

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