Multiplicity dependence of correlation functions in reactions at GeV

Buschbeck, B.; Eggers, H. C.; Lipa, P.

doi:10.1016/s0370-2693(00)00452-4

Cited by 18 publications

(29 citation statements)

References 20 publications

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“…This method, which was first proposed in [9] and described in details in [10], has been applied in the study of multi-particle dynamical fluctuations. In these investigations, also referred to as intermittency analyses, the dependence of the cumulants values on the average multiplicity has been proposed to be the consequence of a mixing of several well defined hadron emission sources [11][12][13][14][15].…”

Section: The Hadron Source Approach In Cumulants and Becmentioning

confidence: 99%

The particle emitter size dependence on energy in e+e− annihilations into hadrons

Alexander

2004

Physics Letters B

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The nearly energy independent hadron emitter dimension r, measured in e + e − annihilation in the energy range 10 to 91 GeV via the Bose-Einstein correlation of two identical charged pions, is shown to be well accounted for by choosing the hadron jets as independent pion sources. To this end the known normalised factorial cumulant moments dependence on particle sources is adapted to the Bose-Einstein correlation formalism to yield a relation between r and these sources. This approach is also able to account for the measured r values obtained for the Z 0 decays into two and three hadron jets. Finally the estimated r value of the hadronic Υ(9.46) decay via three gluons is expected to be higher by about 6 to 11% over that predicted for its one photon hadronic decay mode.

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Section: The Hadron Source Approach In Cumulants and Becmentioning

confidence: 99%

The particle emitter size dependence on energy in e+e− annihilations into hadrons

Alexander

2004

Physics Letters B

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“…Therefore, the area difference ∆A = |A 12 − A 21 | appears and enters into the weight while calculating the production probability. The weight, in terms of the area difference due to the interchange of the two bosons and after introduction of a transverse momentum k ⊥ term, then reads 22) where ∆ denotes the difference between the configurations P and P , and the sum of k 2 ⊥ j runs over all vertices. σ k ⊥ is the width of the transverse momentum distribution for the generated hadrons.…”

Section: String Modelmentioning

confidence: 99%

“…The correlation strength λ is expected [21,22] to decrease when the number of independent overlapping sources increases. The source radius R is expected to increase when the two sources are dependent, since color flux runs from one string over the gluon tip to the other string, so that the distance between two points on the two strings is along this longer curve rather than along a straight line.…”

Section: Motivation Of Inter-string Bec Studymentioning

confidence: 99%

Inter-string Bose-Einstein Correlations in Hadronic Z Decays using the L3 Detector at LEP

Wang¹

2006

AIP Conference Proceedings

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“…Except for heavy ion collisions, where correlations beyond second order are found to be small, as can be understood from a superposition of independent particle-production sources [7], in all other types of reactions, significant positive higher-order correlations are seen. In two-or three-dimensional (typically rapidity, azimuthal angle, transverse momentum) phase space cells, they rapidly increase as the cell-size, ∆, becomes smaller.…”

Section: Introductionmentioning

confidence: 98%

Genuine correlations of like-sign particles in hadronic Z0 decays

Anagnostou¹,

Bell²,

Bloodworth³

et al. 2001

Physics Letters B

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Correlations among hadrons with the same electric charge produced in Z 0 decays are studied using the high statistics data collected from 1991 through 1995 with the OPAL detector at LEP. Normalized factorial cumulants up to fourth order are used to measure genuine particle correlations as a function of the size of phase space domains in rapidity, azimuthal angle and transverse momentum. Both all-charge and like-sign particle combinations show strong positive genuine correlations. One-dimensional cumulants initially increase rapidly with decreasing size of the phase space cells but saturate quickly. In contrast, cumulants in two-and three-dimensional domains continue to increase. The strong rise of the cumulants for all-charge multiplets is increasingly driven by that of likesign multiplets. This points to the likely influence of Bose-Einstein correlations. Some of the recently proposed algorithms to simulate Bose-Einstein effects, implemented in the Monte Carlo model Pythia, are found to reproduce reasonably well the measured secondand higher-order correlations between particles with the same charge as well as those in all-charge particle multiplets.To be submitted to Phys. Lett. B

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Multiplicity dependence of correlation functions in reactions at GeV

Cited by 18 publications

References 20 publications

The particle emitter size dependence on energy in e+e− annihilations into hadrons

The particle emitter size dependence on energy in e+e− annihilations into hadrons

Inter-string Bose-Einstein Correlations in Hadronic Z Decays using the L3 Detector at LEP

Genuine correlations of like-sign particles in hadronic Z0 decays

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