Observation of short-range 3-particle correlations in e(+)e(-) annihilations at lep energies

Abstract
\def\tpc{three-particle correlation} \def\twopc{two-particle correlation} Measurements are presented of short range three-particle correlations in e^+ e^- annihilations at LEP using data collected by the DELPHI detector. %The jet structure is studied using three-particle correlation functions. At small values of the four-momentum difference, strong three-particle correlations are observed for like-sign (+++ and ---) and for unlike-sign (++- and +--) pion combinations which are not a consequence of two-particle correlations. A possible explanation of the observed effects in like-sign combinations is the existence of higher order Bose-Einstein interference, which significantly changes the particle distributions in jets.
Description
Bibliographic reference
DELPHI Collaboration Castillo Giménez, María Victoria Cortina, E. Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Hernández Rey, Juan José Higón Rodríguez, Emilio Lacasta Llácer, Carlos Martínez Vidal, Fernando Martí García, Salvador Navas, S. Salt Cairols, José 1995 Observation of short-range 3-particle correlations in e(+)e(-) annihilations at lep energies Physics Letters B 355 1-2 415 424
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