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Study of hc→3(π+π−)π0 , hc→2(π+π−)ω , hc→2(π+π−)π0η , hc→2(π+π−)η , and hc→pp¯

1Citations signalées — pas une note de qualité
86Institutions déclarées
17Pays d’affiliation déclarés

Résumé fourni par la source

Based on (2712.4±14.1)×106 ψ(3686) events collected with the BESIII detector, we study the decays hc→3(π+π−)π0 , hc→2(π+π−)ω , hc→2(π+π−)π0η , hc→2(π+π−)η , and hc→pp¯ via ψ(3686)→π0hc . The decay channel hc→3(π+π−)π0 is observed for the first time, and its branching fraction is determined to be (9.28±1.14±0.77)×10−3 , where the first uncertainty is statistical and the second is systematic. In addition, first evidence is found for the modes hc→2(π+π−)π0η and hc→2(π+π−)ω with significances of 4.8σ and 4.7σ , and their branching fractions are determined to be (7.55±1.51±0.77)×10−3 and (4.00±0.86±0.35)×10−3 , respectively. No significant signals of hc→2(π+π−)η and hc→pp¯ are observed, and the upper limits of the branching fractions of these decays are determined to be <6.19×10−4 and <4.40×10−5 at the 90% confidence level, respectively. Published by the American Physical Society 2024

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DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.

Titre Crossref
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Date Crossref
30/04/2024
Éditeur
American Physical Society (APS)
Type
journal-article

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Institutions déclarées

Institute of High Energy PhysicsSiberian Branch of the Russian Academy of SciencesBudker Institute of Nuclear PhysicsUppsala UniversityRuhr University BochumZhengzhou UniversityJohannes Gutenberg University MainzUniversity of TurinUniversity of Science and Technology of ChinaSoutheast UniversityJoint Institute for Nuclear ResearchIstituto Nazionale di Fisica Nucleare, Sezione di FerraraPeking UniversityUniversity of Chinese Academy of SciencesNational Centre for Nuclear ResearchInstitute of Physics and TechnologyIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiCarnegie Mellon UniversityUniversity of MünsterWuhan UniversityIstinye UniversityNankai UniversityChina University of GeosciencesSoochow UniversityHenan UniversityNorth China Electric Power UniversityNanjing UniversityTsinghua UniversityInstitute of Modern PhysicsJilin UniversityHunan UniversityChung-Ang UniversityShandong UniversityYunnan UniversityHelmholtz Institute MainzUniversity of South ChinaUniversity of JinanLiaoning UniversitySun Yat-sen UniversityUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Nanjing Normal UniversityUniversity of FerraraUniversity of ManchesterUniversity of OxfordGSI Helmholtz Centre for Heavy Ion ResearchGuangxi UniversityHenan University of TechnologyShandong Normal UniversityFudan UniversityIndiana University BloomingtonHenan Normal UniversityUniversity of Hawaiʻi at MānoaUniversity of Hawaii SystemSuranaree University of TechnologySouth China Normal UniversityUniversity of the PunjabLiaoning Normal UniversityHangzhou Normal UniversityHuangshan UniversityUniversity of TarapacáUniversity of GroningenIndian Institute of Technology MadrasJustus-Liebig-Universität GießenQufu Normal UniversityRenmin University of ChinaLanzhou UniversityHebei UniversitySichuan UniversityGuangxi Normal UniversityShanxi UniversityCentral China Normal UniversityHenan University of Science and TechnologyCentral South UniversityZhejiang UniversityCOMSATS University IslamabadUniversity of PerugiaIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaHunan Normal UniversityChina Center of Advanced Science and TechnologyShanghai Jiao Tong UniversityNear East UniversityInner Mongolia UniversityYantai UniversityBeihang UniversityShanxi Normal UniversityUniversity of Science and Technology Liaoning

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

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