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Observation of ψ(3686) → $$ {\Xi}^{-}{K}_S^0{\overline{\varOmega}}^{+} $$ + c.c.

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90Institutions déclarées
19Pays d’affiliation déclarés

Résumé fourni par la source

A bstract Using a sample of (2 . 712 ± 0 . 014) × 10 9 ψ (3686) events collected with the BESIII detector at the electron positron collider BEPCII, the decay ψ (3686) → $$ {\Xi}^{-}{K}_S^0{\overline{\varOmega}}^{+} $$ Ξ − K S 0 Ω ¯ + + c.c. is observed for the first time, which has a significance of 5.9 standard deviations. The branching fraction of this decay is measured to be (2 . 91 ± 0 . 47 ± 0 . 33) × 10 − 6 , where the first and second uncertainties are statistical and systematic, respectively. The ratio between $$ {\mathcal{B}}_{\psi (3686)\to {\varXi}^{-}{K}_S^0{\overline{\varOmega}}^{+}+c.c} $$ B ψ 3686 → Ξ − K S 0 Ω ¯ + + c . c and $$ {\mathcal{B}}_{\psi (3686)\to {\varOmega}^{-}{K}^{+}{\overline{\Xi}}^0+c.c} $$ B ψ 3686 → Ω − K + Ξ ¯ 0 + c . c is determined to be 1 . 05 ± 0 . 23 ± 0 . 14, which deviates from the isospin symmetry conservation predicted value of 0.5 by 2 . 1 σ .

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Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Observation of ψ(3686) → $$ {\Xi}^{-}{K}_S^0{\overline{\varOmega}}^{+} $$ + c.c.
Date Crossref
25/06/2025
Éditeur
Springer Science and Business Media LLC
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude et ne compte pas comme une seconde source scientifique indépendante.

Institutions déclarées

Novosibirsk State UniversityBudker Institute of Nuclear PhysicsUppsala UniversityZhengzhou UniversityJohannes Gutenberg University MainzUniversity of TurinUniversity of Science and Technology of ChinaJoint Institute for Nuclear ResearchPeking UniversityUniversity of Chinese Academy of SciencesNational Centre for Nuclear ResearchIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIstituto Nazionale di Fisica Nucleare, Sezione di FerraraCarnegie Mellon UniversityUniversity of MünsterWuhan UniversityLanzhou UniversityIstinye UniversityNankai UniversityMoscow Institute of Physics and TechnologyChina University of GeosciencesHenan UniversityNorth China Electric Power UniversityNanjing UniversityTsinghua UniversityInstitute of Modern PhysicsJilin UniversityJilin Medical UniversityHunan UniversityChung-Ang UniversityFudan UniversityShandong UniversityYunnan UniversityHelmholtz Institute MainzRuhr University BochumUniversity of South ChinaUniversity of JinanLiaoning UniversityInner Mongolia UniversityHenan Normal UniversityUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Piedmont UniversityNanjing Normal UniversityUniversity of FerraraUniversity of ManchesterUniversity of OxfordGSI Helmholtz Centre for Heavy Ion ResearchGuangxi UniversityShandong Normal UniversityIndiana UniversityUniversity of Hawaii SystemSuranaree University of TechnologySouth China Normal UniversityUniversity of the PunjabHangzhou Normal UniversityHuangshan UniversityUniversity of TarapacáUniversity of GroningenIndian Institute of Technology MadrasJustus-Liebig-Universität GießenLiaoning Normal UniversityQufu Normal UniversityRenmin University of ChinaHebei UniversityChina Center of Advanced Science and TechnologySichuan UniversityGuangxi Normal UniversityCentral China Normal UniversityShanxi University of Traditional Chinese MedicineHenan University of Science and TechnologyHenan University of TechnologyCentral South UniversityZhejiang UniversityGoethe University FrankfurtCOMSATS University IslamabadUniversity of PerugiaIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaKurchatov InstituteHunan Normal UniversityÉcole Polytechnique Fédérale de LausanneShanghai Jiao Tong UniversityInstitute of Particle PhysicsInstitute of Nuclear and Particle PhysicsNear East UniversityBeihang UniversityYantai UniversityUniversity of BristolBristol Robotics LaboratoryShanxi Normal UniversityUniversity of Science and Technology Liaoning

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

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Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsBlack Holes and Theoretical Physics

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