20.500.12556/DKUM-85288 Measurement of two-particle correlations of hadrons in ▫$e^+ e^-$▫ collisions at Belle The measurement of two-particle angular correlation functions in high-multiplicity e+e− collisions at √s=10.52  GeV is reported. In this study, the 89.5  fb−1 of hadronic e+e− annihilation data collected by the Belle detector at KEKB are used. Two-particle angular correlation functions are measured in the full relative azimuthal angle (Δϕ) and three units of pseudorapidity (Δη), defined by either the electron beam axis or the event-shape thrust axis, and are studied as a function of charged-particle multiplicity. The measurement in the thrust axis analysis, with mostly outgoing quark pairs determining the reference axis, is sensitive to the region of additional soft gluon emissions. No significant anisotropic collective behavior is observed with either coordinate analyses. Near-side jet correlations appear to be absent in the thrust axis analysis. The measurements are compared to predictions from various event generators and are expected to provide new constraints to the phenomenological models in the low-energy regime. Particle & resonance production Quark & gluon jets Quark-gluon plasma true false true Angleški jezik Slovenski jezik Znanstveno delo 2023-08-24 14:50:55 2023-08-24 14:50:55 2023-08-25 03:07:52 0000-00-00 00:00:00 2022 0 0 str. 142005-1-142005-8 št. 14 Letn. 128 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2022-01-01 539.1 142213891 10.1103/PhysRevLett.128.142005 0031-9007 Measurement_of_Two-Particle_Correlat-Chen-2022.pdf Measurement_of_Two-Particle_Correlat-Chen-2022.pdf 1 F5241A3382D012E9FFBA9B9C4AB27F20 0e8c983f83c02c7b7423ab91a99d8cbfdf6a94343d39a7aa2307141868a4c6c1 478ba920-427e-11ee-ac23-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=170297 https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.128.142005 0 543054d5-427e-11ee-ac23-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=170298 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0