2018/01/10 by Tamás Novák, Novák, Tamás · 2 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1801.03544
openalex publication_date 2018/01/10 · openalex created_date 2022/10/01 · openalex updated_date 2026/07/28
Bose-Einstein correlations of identical hadrons reveal information about\nhadron creation from the strongly interacting matter formed in\nultrarelativistic heavy ion collisions. The measurement of three-particle\ncorrelations may in particular shed light on hadron creation mechanisms beyond\nthermal/chaotic emission. In this paper we show the status of PHENIX\nmeasurements of three pion correlations as a function of momentum differences\nwithin the triplets. We analyze the shape of the correlation functions through\nthe assumption of L 'evy sources and a proper treatment of the Coulomb\ninteraction within the triplets. We measure the three-particle correlation\nstrength (\λ3), which, together with the two-particle correlation\nstrength \λ2, encodes information about hadron creation mechanisms.\nFrom a consistent analysis of two- and three-particle correlation strength we\nestablish a new experimental measure of thermalization and coherence in the\nsource.\n