Intermittency and correlations in 200 GeV/nucleon S+S and S+Au collisions

Albrecht, R.; Antonenko, A. G.; Awes, T. C.; Berger, F.; Bloomer, M. A.; Bock, David C.; Bock, R.; Claesson, G.; Clewing, G.; Dragon, L.; Eklúnd, Anders; Fokin, S.; Franz, A.; Garpman, S.; Glasow, R.; Gustafsson, H. Å.; Gutbrod, H.H.; Hartig, M.; He, Xiao Cong; Hölker, G.; Idh, J.; Ippolitov, M.; Jacobs, P.; Kampert, K.‐H.; Karadjev, K.; Kolb, B. W.; Lebedev, A.; Löhner, H.; Lund, I.; Manko, V.; Nikolaev, S.; Nystrand, J.; Obenshain, F.E.; Öskarsson, A.; Otterlund, I.; Peitzmann, T.; Plášil, F.; Poskanzer, A. M.; Purschke, M. L.; Ritter, H.G.; Roters, B.; Saini, S.; Santo, R.; Schmidt, H. R.; Söderström, K.; Sörensen, S.; Steffens, K.; Steinhauser, Peter; Stenlund, E.; Stüken, D.; Виноградов, А.; Young, G. R.

doi:10.1103/physrevc.50.1048

Cited by 15 publications

(5 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The suggestion that normalized factorial moments of particle distributions might show power-law behaviour has spurred a vigorous experimental search for (more or less) linear dependence of ln F q on − ln δy. Within a surprisingly short time (one-dimensional) analyses were performed for e + e − [133][134][135][136][137][138][139], µp [140], νA [141], hh [142][143][144][145][146][147][148], hA [149][150][151][152][153][154] and AA [149,150,[155][156][157][158][159][160][161] collisions. With respect to the original objective, the early one-dimensional work has remained inconclusive, but valuable information and experience was accumulated.…”

Section: Normalized Factorial Moments 421 the Methodsmentioning

confidence: 99%

“…Model comparisons are, therefore, less conclusive than in hh collisions. FRITIOF is found too low in NA22 [151] for π + /K + on Al and Au at 250 GeV/c, in E802 [160] for central 16 OAl and 16 OCu at 14.6 A GeV/c, in WA80 [161] for SS and Au at 200 A GeV/c, and in NA35 [150] for pAu, OAu, SAu and SS at 200 A GeV/c. In WA80 it is shown that rough agreement can be obtained by renormalization to the leftmost point of FRITIOF on the log-log plot (essentially the shape of the overall multiplicity distribution) to the data.…”

Section: Model Predictions Hadron-hadron Collisionsmentioning

confidence: 99%

See 1 more Smart Citation

Scaling laws for density correlations and fluctuations in multiparticle dynamics

Wolf

Dremin

Kittel³

1996

Physics Reports

428

465

View full text Add to dashboard Cite

show abstract

Section: Normalized Factorial Moments 421 the Methodsmentioning

confidence: 99%

Section: Model Predictions Hadron-hadron Collisionsmentioning

confidence: 99%

Scaling laws for density correlations and fluctuations in multiparticle dynamics

Wolf

Dremin

Kittel³

1996

Physics Reports

428

465

View full text Add to dashboard Cite

show abstract

“…Another reason is that the NB regularity underestimates the high multiplicity tail [34,36,38,40,41] which gives the main contribution to the fluctuations and which is influenced by instabilities. For high multiplicities the NB distribution transforms to the stable Γ-distribution [25].…”

Section: Normalized Factorial Moments and Cumulants From Various Paramentioning

confidence: 99%

“…This is in contradiction to the results obtained in nuclear collisions [38], where the Γ-distribution was found to be significantly inconsistent to reproduce the measurements: it underestimates the low-multiplicity parts of the experimental multiplicity distributions in different rapidity bins, while overestimates the high-multiplicity tails. Again in contrast to e + e − data, the NB regularity is found to be the best one to describe small fluctuations in the multiplicity distribution in nuclear data, and large fluctuations are well reproduced by two-particle correlations [38,[40][41][42][43]…”

Section: Normalized Factorial Moments and Cumulants From Various Paramentioning

confidence: 99%

Description of local multiplicity fluctuations and genuine multiparticle correlations

Sarkisyan

2000

Physics Letters B

View full text Add to dashboard Cite

Various parametrizations of the multiplicity distribution are studied using the recently published large statistics OPAL results on multidimensional local fluctuations and genuine correlations in e + e − → Z 0 → hadrons. The measured normalized factorial and cumulant moments are compared to the predictions of the negative binomial distribution, the modified and generalized versions of it, the log-normal distribution and the model of the generalized birth process with immigration. This is the first study which uses the multiplicity distribution parametrizations to describe high-order genuine correlations. Although the parametrizations fit well the measured fluctuations and correlations for low orders, they do show certain deviations at high orders. We have shown that it is necessary to incorporate the multiparticle character of the correlations along with the property of self-similarity to attain a good description of the measurements. * Email address: edward@lep1.tau.ac.il 1 Earlier, using correlation (strip) integrals to reduce statistical errors, multiparticle genuine correlations have been searched for in hadron-hadron [9,10] and lepton-hadron [11] interactions. It is worth to note that except for problems arising due to various possibilities in defining of a proper topology of particles and a distance between them (see e.g. [2]), a rather important difficulty in interpreting results could come from a translation invariance breaking of the many-particle distributions [12]. This will lead to different results on moments/cumulants according to a variable used because different variables are sensitive to different hadroproduction mechanisms [12,13]. For example, in the high-order genuine correlations obtained in Ref. [9,11] the study is performed in four-momentum difference squared, Q 2 , dependent on Bose-Einstein correlations, whereas in the pseudorapidity analysis [10] no correlations higher than two-particle ones were found, since (pseudo)rapidity seems [13] to be more "natural" variable to search for jet formation than e.g. for Bose-Einstein correlations.

show abstract

“…A strong reduction of the measured power φ r with decreasing dimensionality of the analysis was explained by Bialas and Seixas[33] as due to averaging of fluctuations via the projection procedure. Thus the factorial moment analysis in three dimensions seems to be mandatory in future searches for the critical behaviour.Motivated by these results the WA80[64] and NA35[65] experiments at the SPS revisited intermittency analysis in nucleus-nucleus collisions at 200A GeV/c. WA80 did not have momentum measurement and inferior 2-track and angular resolution compared to the emulsion…”

mentioning

confidence: 99%

Search for Critical Behaviour of Strongly Interacting Matter at the CERN Super Proton Synchrotron

Gaździcki¹,

Seyboth²

2016

Acta Phys. Pol. B

View full text Add to dashboard Cite

History, status and plans of the search for critical behavior of strongly interacting matter created in nucleus-nucleus collisions at the CERN Super Proton Synchrotron is reviewed. In particular, it is expected that the search should answer the question whether the critical point of strongly interacting matter exists and, if it does, where it is located.First, the search strategies are presented and a short introduction is given to expected fluctuation signals and to the quantities used by experiments to detect them. The most important background effects are also discussed.Second, relevant experimental results are summarized and discussed. It is intriguing that both the fluctuations of quantities integrated over the full experimental acceptance (event multiplicity and transverse momentum) as well as the bin size dependence of the second factorial moment of pion and proton multiplicities in medium-sized Si+Si collisions at 158A GeV/c suggest critical behaviour of the created matter.These results provide strong motivation for the ongoing systematic scan of the phase diagram by the NA61/SHINE experiment at the SPS and the continuing search at the Brookhaven Relativistic Hadron Collider.

show abstract

Intermittency and correlations in 200 GeV/nucleon S+S and S+Au collisions

Cited by 15 publications

References 51 publications

Scaling laws for density correlations and fluctuations in multiparticle dynamics

Scaling laws for density correlations and fluctuations in multiparticle dynamics

Description of local multiplicity fluctuations and genuine multiparticle correlations

Search for Critical Behaviour of Strongly Interacting Matter at the CERN Super Proton Synchrotron

Contact Info

Product

Resources

About