Genuine correlations of like-sign particles in hadronic Z0 decays

G Anagnostou; PJ Bell; IJ Bloodworth; DG Charltona; CM Hawkes; RJ Homer; P Jovanovic; TJ McMahon; SW O’neale; MF Turner-Watson; PM Watkins; AT Watson; NK Watson; JA Wilson; G Abbiendi; D Bonacorsi; L Brigliadori; M Cuffiani; GM Dallavalle; F Fabbri; G Giacomelli; P Giacomelli; S Marcellini; G Masetti; A Michelini; B Poli; A Tricoli; PF Åkesson; J Cammin; C Geich-Gimbel; PO Günther; M Kobel; TP Kokott; T Kuhl; W Mader; A Quadt; S Rosati; A Stahl; N Wermes; G Benelli; JW Gary; M Harin-Dirac; JG Layter; H Rick; BC Shen; C Ainsley; RJ Batley; JR Carter; JC Hill; CR Jones; C Littlewood; CH Shepherd-Themistocleous; MA Thomson; CP Ward; DR Ward; RK Carnegie; MS Dixit; M Donkers; RJ Hemingway; TR Junk; D Karlen; P Krieger; MJ Losty; H Mes; K Sachs; D Waller; E Barberio; S Braibant; HJ Burckhart; A Csilling; A De Roeck; EA Wolf; F Fiedler; A Frey; A Fürtjes; M Gruwé; M Hauschild; R Hawkings; F Meijers; R Nisius; A Oh; G Pásztor; DE Plane; J Polok; O Pooth; K Rabbertz; C Rembser; EKG Sarkisyan; P Scharff-Hansen; M Schröder; C Schwick; AM Smith; M Tasevsky; I Trigger; H Voss; J Vossebeld; PS Wells; T Wengler; D Zer-Ziong; KJ Anderson

Journal article

Genuine correlations of like-sign particles in hadronic Z0 decays

G Anagnostou, PJ Bell, IJ Bloodworth, DG Charltona, CM Hawkes, RJ Homer, P Jovanovic, TJ McMahon, SW O’neale, MF Turner-Watson, PM Watkins, AT Watson, NK Watson, JA Wilson, G Abbiendi, D Bonacorsi, L Brigliadori, M Cuffiani, GM Dallavalle, F Fabbri Show all

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics | ELSEVIER SCIENCE BV | Published : 2001

DOI: 10.1016/S0370-2693(01)01332-6

Abstract

Correlations among hadrons with the same electric charge produced in Z0 decays are studied using the high statistics data collected from 1991 through 1995 with the OPAL detector at LEP. Normalized factorial cumulants up to fourth order are used to measure genuine particle correlations as a function of the size of phase space domains in rapidity, azimuthal angle and transverse momentum. Both all-charge and like-sign particle combinations show strong positive genuine correlations. One-dimensional cumulants initially increase rapidly with decreasing size of the phase space cells but saturate quickly. In contrast, cumulants in two- and three-dimensional domains continue to increase. The strong r..

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