Scaling laws for density correlations and fluctuations in multiparticle dynamics

Wolf, E. A. De; Dremin, I. M.; Kittel, W.

doi:10.1016/0370-1573(95)00069-0

Cited by 428 publications

(485 citation statements)

References 274 publications

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“…These studies, complemented by theoretical analyses of the (approximately) self-similar character of perturbative QCD cascades, concentrated on the search for "intermittency": the occurrence of large fluctuations in particle density arising from scale-invariant dynamics. This work has provided firm indications that intermittency is strongly connected with Bose-Einstein correlations [8]. Scale invariance implies that multiparticle correlation functions exhibit power law behaviour over a considerable range of the relevant relative distance measure (such as T 2 or M 2 ) in phase space.…”

Section: Bose-einstein Correlationsmentioning

confidence: 71%

“…In recent years, considerable experimental effort has been devoted to the study of fluctuation phenomena in multiparticle production processes [8]. These studies, complemented by theoretical analyses of the (approximately) self-similar character of perturbative QCD cascades, concentrated on the search for "intermittency": the occurrence of large fluctuations in particle density arising from scale-invariant dynamics.…”

Section: Bose-einstein Correlationsmentioning

confidence: 99%

“…In recent years it has been emphasized that Bose-Einstein correlations are but one of the many facets of multi-particle correlation studies (see e.g. [7,8] for a review). Independently of the details of the interpretation, the experimental study of BEC in a broad variety of reactions should eventually lead to better understanding of the space-time geometry of multihadron production [9].…”

Section: Introductionmentioning

confidence: 99%

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Bose-Einstein correlations in deep inelastic e+p scattering at HERA

Charlet

1997

AIP Conference Proceedings

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Two-particle correlations in invariant mass are studied separately for like-sign and unlike-sign charged particles produced in deep inelastic positron-proton scattering in a new kinematical domain. The data were taken with the H1 detector at the HERA storage ring in 1994, in which 27.5 GeV positrons collided with 820 GeV protons at a centre of mass energy √ s = 300 GeV.The observed enhancement of the like-sign correlations at low invariant masses is related to the dimensions of the hadronic source. The data are compared to different QCD models where the hadronization is performed with the string-fragmentation model. Results are presented for the first time separately for diffractive and non-diffractive scattering, in domains of four-momentum transfer, Bjorken-x, and hadronic center of mass energy, and in intervals of charged particle multiplicity. The observed source radii do not differ strongly from those measured in lower energy lepton-nucleon inelastic scattering, and e + e − annihilation.

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Section: Bose-einstein Correlationsmentioning

confidence: 71%

Section: Bose-einstein Correlationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bose-Einstein correlations in deep inelastic e+p scattering at HERA

Charlet

1997

AIP Conference Proceedings

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“…The latter quantity is equal to the integral of the inclusive two-particle density over a given domain in phase space and is a measure of the strength of correlations among the produced hadrons [44,49]. Note that in the case of uncorrelated particle production, the probability to produce n particles, P n , follows a Poisson distribution with the result that R 2 ≡ 1.…”

Section: Multiplicity Momentsmentioning

confidence: 99%

Multiplicity structure of the hadronic final state in diffractive deep-inelastic scattering at HERA

Adloff

1998

Eur. Phys. J. C

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The multiplicity structure of the hadronic system X produced in deep-inelastic processes at HERA of the type ep → eXY , where Y is a hadronic system with mass M Y < 1.6 GeV and where the squared momentum transfer at the pY vertex, t, is limited to |t| < 1 GeV 2 , is studied as a function of the invariant mass M X of the system X. Results are presented on multiplicity distributions and multiplicity moments, rapidity spectra and forward-backward correlations in the centre-ofmass system of X. The data are compared to results in e + e − annihilation, fixedtarget lepton-nucleon collisions, hadro-produced diffractive final states and to nondiffractive hadron-hadron collisions. The comparison suggests a production mechanism of virtual photon dissociation which involves a mixture of partonic states and a significant gluon content. The data are well described by a model, based on a QCD-Regge analysis of the diffractive structure function, which assumes a large hard gluonic component of the colourless exchange at low Q 2 . A model with soft colour interactions is also successful.

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“…In the paper, we focus * Electronic address: panxuepx@gmail.com † Electronic address: wuyf@phy.ccnu.edu.cn on the contributions of Poisson-liked statistical fluctuations, which are caused by the finite number of produced particles [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Statistical and dynamical parts of the cumulants of conserved charges in relativistic heavy ion collisions

Xue

Zhang

et al. 2014

Phys. Rev. C

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The Poisson-liked statistical fluctuations, which are caused by the finite number of produced particles, are firstly estimated for the cumulants of conserved charges, i.e., the cumulants of netbaryon, net-electric charge, and net-strangeness. They turn out to be the same as those baselines derived from Hadron Resonance Gas (HRG) model. The energy and centrality dependence of netproton cumulants at the Relativistic Heavy-Ion Collider (RHIC) are demonstrated to be mainly caused by statistical fluctuations. Subtracting the statistical fluctuations, the dynamical kurtosis of net-and total-proton from two versions of the AMPT model and the UrQMD model at current RHIC beam energies are presented. It is found that the observed sign change in the kurtosis of netproton can not be reproduced by these three transport models. There is no significant difference between net-and total-proton kurtosis in model calculations, in contrary to the data at RHIC.

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Scaling laws for density correlations and fluctuations in multiparticle dynamics

Cited by 428 publications

References 274 publications

Bose-Einstein correlations in deep inelastic e+p scattering at HERA

Bose-Einstein correlations in deep inelastic e+p scattering at HERA

Multiplicity structure of the hadronic final state in diffractive deep-inelastic scattering at HERA

Statistical and dynamical parts of the cumulants of conserved charges in relativistic heavy ion collisions

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