Erratum: Hidden asymmetry and forward-backward correlations [Phys. Rev. C<b>82</b>, 034911 (2010)]

Białas, Adam J.; Zalewski, K.

doi:10.1103/physrevc.85.029903

Cited by 18 publications

(31 citation statements)

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“…With decreasing centrality this correlation becomes weaker both in the data and in the models. One can understand this effect qualitatively in the framework of a "hidden asymmetry" picture [17,18], in which the dominant configuration is strongly asymmetric. There are few events in which the number of participants in both colliding nuclei is the same or similar.…”

Section: Discussionmentioning

confidence: 99%

On multiplicity correlations in the STAR data

Fialkowski

Wit

2012

Open Physics

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Abstract:The STAR data on the multiplicity correlations between narrow pseudorapidity bins in the pp and AuAu collisions are discussed. The PYTHIA 8.145 generator is used for the pp data, and a naïve superposition model is presented for the AuAu data. It is shown that the PYTHIA generator with default parameter values describes the pp data reasonably well, whereas the superposition model fails to reproduce the centrality dependence seen in the data. Some possible reasons for this failure and a comparison with other models are presented.

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Section: Discussionmentioning

confidence: 99%

On multiplicity correlations in the STAR data

Fialkowski

Wit

2012

Open Physics

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“…Extension of this approach to the nucleus-nucleus case [63,64] leads to a proper description of the forward-backward multiplicity fluctuations at RHIC [64][65][66][67] and to a natural explanation of the sign and magnitude of the directed flow coefficient, v 1 [68]. Furthermore, theoretical studies of the correlations of the forward and backward elliptic flow with fluctuations and the asymmetric emission profile lead to the torque effect [69], where the angle between the forward and backward principal axes of the particle distributions in the transverse plane fluctuates substantially on eventby-event basis.…”

Section: Introductionmentioning

confidence: 99%

Wounded-nucleon model with realistic nucleon-nucleon collision profile and observables in relativistic heavy-ion collisions

Rybczyński

Broniowski

2011

Phys. Rev. C

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We investigate the influence of the nucleon-nucleon collision profile (probability of interaction as a function of the nucleon-nucleon impact parameter) in the wounded nucleon model and its extensions on several observables measured in relativistic heavy-ion collisions. We find that the participant eccentricity coefficient, ǫ * , as well as the higher harmonic coefficients, ǫ * n , are reduced by 10-20% for mid-peripheral collisions when the realistic (Gaussian) profile is used, as compared to the case with the commonly-used hard-sphere profile. Similarly, the multiplicity fluctuations, treated as the function of the number of wounded nucleons in one of the colliding nuclei, are reduced by 10-20%. This demonstrates that the Glauber Monte Carlo codes should necessarily use the realistic nucleon-nucleon collision profile in precision studies of these observables. Our study is relevant for hydrodynamic calculations which use the Glauber-model initial conditions. The Gaussian collision profile is built-in in GLISSANDO.

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“…To end this part, let me mention that a systematic method of investigating the f-b correlations in symmetric processes was recently developped [8]. The relations were derived between the factorial cumulants in one (say, forward) bin and the joint factorial cumulants in two (forward and backward) bins.…”

Section: Negative Binomial Distributionmentioning

confidence: 99%

“…The essential point is that correlations for one symmetric source are generally much stronger than those induced by two asymmetric sources [8,16].…”

Section: Negative Binomial Distributionmentioning

confidence: 99%