Multifractal analysis of minimum bias events in $$\sqrt s $$ = 630 GeV $$\bar p$$ p collisions

• DOI: 10.1007/bf01589705
• Publication Date: 2005-05-06T17:30:37Z
• Authors: C. Albajar; O. C. Allkofer; R. Apsimon; S. Bartha; A. Bezaguet; A. Böhrer; B. Buschbeck; P. Cennini; S. Cittolin; E. Clayton; J. A. Coughlan; D. Dau; M. Negra; M. Demoulin; H. Dibon; J. D. Dowell; K. Eggert; E. Eisenhandler; N. Ellis; H. Faissner; I. F. Fensome; A. Ferrando; J. Garvey; A. Geiser; A. Givernaud; A. Gonidec; W. Jank; G. Jorat; M. I. Josa; P. I. P. Kalmus; V. Karimäki; I. Kenyon; R. Kinnunen; M. Krammer; S. Lammel; M. Landon; S. Levegruen; P. Lipa; C. Markou; M. Markytan; G. Maurin; S. McMahon; T. Meyer; T. Moers; A. Morsch; A. Moulin; L. Naumann; N. Neumeister; A. Norton; G. Pancheri; F. Pauss; E. Pietarinen; M. Pimiä; A. Placci; J. -P. Porte; R. Priem; R. Prosi; E. Radermacher; M. Rauschkolb; H. Reithler; J. -P. Revol; D. Robinson; C. Rubbia; J. M. Salicio; D. Samyn; D. Schinzel; R. Schleichert; C. Seez; T. P. Shah; P. Sphicas; K. Sumorok; F. Szoncso; C. H. Tan; A. Taurok; L. Taylor; S. Tether; H. Teykal; G. Thompson; E. Torrente-Lujan; H. Tuchscherer; J. Tuominiemi; T. S. Virdee; W. Schlippe; V. Vuillemin; K. Wacker; H. Wagner; G. Walzel; D. Weselka; C. -E. Wulz
• Keywords: 0103 physical sciences; 01 natural sciences

A search for multifractal structures, in analogy with multifractal theories, is performed on UA1 minimum bias events. A downward concave multifractal spectral function,f(α) (where α is the Lipschitz-Holder exponent), indicates that there are self-similar cascading processes, governing the evolution from the quark to the hadron level, in the final states of hadronic interactions.f(α) is an accurate measure of the bin to bin fluctuations of any observable. It is shown that the most sensitive comparison between data and the Monte Carlo models, GENCL and PYTHIA 4.8 can be made usingf(α). It is found that these models do not fully reproduce the behaviour of the data.