CERN Accelerating science

Article
Report number hep-ex/9606005 ; HEN-387 ; HEN-387
Title Large self-affine fractality in $\pi^{+}p$ and $K^{+}p$ collisions at 250 GeV/c
Related titleSELF-AFFINE
Author(s)

Agababyan, N.M. (Yerevan Phys. Inst.) ; Atayan, M.R. (Yerevan Phys. Inst.) ; Charlet, M. (Nijmegen U. ; Nikhef, Amsterdam) ; Czyżewski, J. (Nijmegen U. ; Nikhef, Amsterdam) ; De Wolf, E.A. (Antwerp U.) ; Dziunikowska, K. (Cracow, INP) ; Endler, A.M.F. (Rio de Janeiro, CBPF) ; Garutchava, Z.Sh. (Tbilisi State U.) ; Gulkanyan, H.R. (Yerevan Phys. Inst.) ; Hakobyan, R.Sh. (Yerevan Phys. Inst.) ; Karamyan, J.K. (Yerevan Phys. Inst.) ; Kisielewska, D. (Cracow, INP) ; Kittel, W. (Nijmegen U. ; Nikhef, Amsterdam) ; Liu, L.S. (Hua-Zhong Normal U.) ; Mehrabyan, S.S. (Yerevan Phys. Inst.) ; Metreveli, Z.V. (Tbilisi State U.) ; Olkiewicz, K. (Cracow, INP) ; Rizatdinova, F.K. (Moscow, ITPM) ; Shabalina, E.K. (Moscow, ITPM) ; Smirnova, L.N. (Moscow, ITPM) ; Tabidze, M.D. (Tbilisi State U.) ; Tikhonova, L.A. (Moscow, ITPM) ; Tkabladze, A.V. (Tbilisi State U.) ; Tomaradze, A.G. (Tbilisi State U.) ; Verbeure, F. (Antwerp U.) ; Wu, Y.F. (Nijmegen U. ; Nikhef, Amsterdam) ; Zotkin, S.A. (Moscow, ITPM)

Publication 1996
Imprint 14 Jun 1996
Number of pages 11
Note 10 pages and 4 figures
In: Phys. Lett. B 382 (1996) 305-311
DOI 10.1016/0370-2693(96)00749-6
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; NA22
Free keywords K+ p ; K+ ; pi+ p ; pi+
Abstract Taking into account the anisotropy of phase space in multiparticle production, a self-affine analysis of factorial moments was carried out on the NA22 data for $\p +\Pp$ and $\PK +\Pp$ collisions at 250 GeV/$c$. Within the transverse plane, the Hurst exponents measuring the anisotropy are consistent with unit value (i.e. no anisotropy). They are, however, only half that value when the longitudinal direction is compared to the transverse ones. Fractality, indeed, turns out to be self-affine rather than self-similar in multiparticle production. In three-dimensional phase space, power-law scaling is observed to be better realized in self-affine than in self-similar analysis.
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