Study of intermittency in electron-positron annihilation into hadrons

Braunschweig, W.; Gerhards, R.; Kirschfink, F. J.; Martyn, H. U.; Fischer, H. M.; Hartmann, H.; Hartmann, J.; Hilger, E.; Jocksch, A.; Wedemeyer, R.; Foster, B.; Martín, A.; Bernardi, Elisabetta De; Chwastowski, J. J.; Eskreys, A.; Genser, K.; Hultschig, H.; Joos, P.; Kowalski, H.; Ladage, A.; Löhr, B.; Lüke, D.; Notz, D.; Pawlak, J. M.; Pösnecker, K. U.; Ros, E.; Trines, D.; Walczak, R.; Wolf, G.; Kolanoski, H.; Kracht, T.; Krüger, J.; Lohrmann, E.; Poelz, G.; Zeuner, Wolfram Dietrich; Binnie, D. M.; Hassard, J.; Shulman, J.; Su, D.; Tomalin, I. R.; Barreiro, F.; Leites, A.; Peso, J. Del; Burrows, P.N.; Heath, G. P.; Veitch, M. E.; Hart, J. C.; Saxon, D. H.; Brandt, Siegmund; Holder, M.; Eisenberg, Y.; Karshon, U.; Mikenberg, G.; Montag, A.; Revel, D.; Ronat, E.; Shapira, A.; Wainer, N.; Yekutieli, G.; Caldwell, A.; Müller, D. R.; Ritz, S.; Takashima, M.; Wu, S. L.; Zobernig, G.

doi:10.1016/0370-2693(89)90707-7

Cited by 111 publications

(23 citation statements)

References 23 publications

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“…To describe the hadronization phase, all present Monte-Carlo codes rely in last instance on a large amount of e + e − data at different energies and are carefully tuned to these. It came, therefore, as a surprise that a first (indirect) analysis [133] of HRS results, shortly followed by TASSO data [134], revealed deviations from model predictions quite similar to those observed in lh and hh collisions (Figs. 4.7a,b).…”

Section: Lepton-hadron Collisionsmentioning

confidence: 82%

“…Fig. 4.10 The log-log plot for TASSO data using a) 2 dimensional y-ϕ bins, b) one-dimensional y bins, in comparison to a two-dimensional α-model [134,24]. Fig.…”

Section: Discussionmentioning

confidence: 99%

“…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%

“…7 ln F 3 (and ln F 2 ) as a function of − ln δy (or ln M, M = ∆Y /δy) for a) HRS[133], b) TASSO[134], c) CELLO[135] and d) DELPHI[136] data compared to LUND (and Webber) parton shower models .…”

mentioning

confidence: 99%

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Scaling laws for density correlations and fluctuations in multiparticle dynamics

Wolf

Dremin

Kittel³

1996

Physics Reports

419

465

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Section: Lepton-hadron Collisionsmentioning

confidence: 82%

“…Fig. 4.10 The log-log plot for TASSO data using a) 2 dimensional y-ϕ bins, b) one-dimensional y bins, in comparison to a two-dimensional α-model [134,24]. Fig.…”

Section: Discussionmentioning

confidence: 99%

Section: Normalized Factorial Moments 421 the Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Scaling laws for density correlations and fluctuations in multiparticle dynamics

Wolf

Dremin

Kittel³

1996

Physics Reports

419

465

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“…with fj > 0 in the case of a fractal (self-similar) cascade -until the fractal structure ceases or is lost in the experim ental resolution. The first analysis of e+e~ annihilation d ata from petra (Braunschweig et al 1989) indicated strong fractal (interm ittent ) behaviour greatly in excess of the predictions /.i /GeV Figure 5. Evolution of the three fundamental coupling constants (a) in the minimal SU (5) model containing no new physics above the Z° mass, which is clearly excluded by the failure of the three values to coincide at a 'grand unification' mass, and ( ) in the minimal supersymmetric extension of the model assuming the supersymmetry (s u s y ) mass scale to be near the Z°, in which case the values meet within one standard deviation at a mass above 1016 GeV.…”

Section: Particle Spectra and M Ultiplicitiesmentioning

confidence: 92%

Jet physics at LEP

Vénus

1991

Phil. Trans. R. Soc. Lond. A

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The results of studies of the jet structure of hadronic Z° decays performed in the first year of LEP operation are reviewed. The measurements of the QCD coupling constant α 8 (M z ) and the detection of the presence of the triple gluon vertex are summarized. After a brief review of the promising status of QCD in relation to even the very soft processes, the running of the coupling constants to high energy is considered in the context of grand unified theories. The necessity and importance of further theoretical work is stressed.

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Intermittenz — ein neues Phänomen bei hochenergetischen Streuprozessen

Ochs¹

1990

Phys. Bl.

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In hochenergetischen Streuprozessen von Elementarteilchen oder Kernen wird eine groBe Zahl stark wechselwirkender Teilchen (,,Hadronen") erzeugt. So entstehen in e+e-oder pp-StoBen an den heutigen Beschleunigern, je nach Primarenergie, im Mittel etwa 20 bis 40 geladene Sekundarteilchen, in Kern-Kern-StoBen sogar uber hundert. Die detaillierte Untersuchung der Vielteilchenereignisse dient dem Studium der starken Wechselwirkung. Zwar gibt es mit der Quantenchromodynamik (QCD), der Eichtheorie der Farbfreiheitsgrade, eine fundamentale Theorie der starken Wechselwirkung, jedoch sind die elementaren Felder der Theorie, die Quarks und Gluonen (auch Partonen genannt), nicht bei groBen Abstanden als freie Objekte beobachtbar, sondern nur deren Bindungszustande, die Hadronen. Dieser ProzeB der Hadronbildung bei groBen Abstanden ist aber noch nicht so gut verstanden, daB man die Vielteilchenphanomene direkt aus der Theorie ableiten konnte, vielmehr sind zusatzliche phanomenologische Modelle erforderlich, die mit neuen Experimenten auch immer wieder modifiziert wurden. Angeregt durch eine Arbeit von Bialas und Peschanski [l], hat vor etwa zwei Jahren ein intensives Studium einer neuen Klasse von Phanomenen begonnen. Untersucht man die Teilchendichte in begrenzten Phasenraumgebieten, so erhalt man Hinweise auf starke nichtstutistische Fluktuationen, die mit einer Verkleinerung des Phasenraumgebietes zunehmen. In Analogie zu ahnlichen Phanomenen in anderen Gebieten der Physikz. B. in der Hydrodynamik turbulenter Flussigkeiten, wo man starke skalenabhangige Fluktuationen des Geschwindigkeitsfeldes und der Temperatur beobachtetspricht man von Zntermittenz [2]. Auch die MOdelle, die zur Beschreibung herangezogen werden, zeigen eine ahnliche Struktur: Man betrachtet stochastische Prozesse mit selbstahnlicher Dynamik.

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Study of intermittency in electron-positron annihilation into hadrons

Cited by 111 publications

References 23 publications

Scaling laws for density correlations and fluctuations in multiparticle dynamics

Scaling laws for density correlations and fluctuations in multiparticle dynamics

Jet physics at LEP

Intermittenz — ein neues Phänomen bei hochenergetischen Streuprozessen

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