Year: 2025
Type: article
Abstract: Using (2712.4±14.3)×10^{6} ψ(3686) events collected with the BESIII detector at BEPCII, a partial wave analysis of the decay ψ(3686)→ϕηη^{'} is performed with the covariant tensor approach. In addition to the established states h_{1}(1900) and ϕ(2170), an axial-vector state with a mass near 2.3 GeV/c^{2} is observed for the first time. Its mass and width are measured to be 2316±9_{stat}±30_{syst} MeV/c^{2} and 89±15_{stat}±26_{syst} MeV, respectively. The product branching fractions of B[ψ(3686)→X(2300)η^{'}]B[X(2300)→ϕη] and B[ψ(3686)→X(2300)η]B[X(2300)→ϕη^{'}] are determined to be (4.8±1.3_{stat}±0.7_{syst})×10^{-6} and (2.2±0.7_{stat}±0.7_{syst})×10^{-6}, respectively. The branching fraction B[ψ(3686)→ϕηη^{'}] is measured for the first time to be (3.14±0.17_{stat}±0.24_{syst})×10^{-5}. The first uncertainties are statistical and the second are systematic.
Source: Physical Review Letters
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Institutions: Institute of High Energy Physics, Siberian Branch of the Russian Academy of Sciences, Budker Institute of Nuclear Physics, Uppsala University, Ruhr University Bochum, Zhengzhou University, Johannes Gutenberg University Mainz, Istituto Nazionale di Fisica Nucleare, University of Turin, University of Science and Technology of China, Southeast University, Joint Institute for Nuclear Research, Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, Peking University, University of Chinese Academy of Sciences, National Centre for Nuclear Research, Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati, Carnegie Mellon University, University of Münster, Wuhan University, Istinye University, Nankai University, China University of Geosciences, Soochow University, North China Electric Power University, Nanjing University, Tsinghua University, Institute of Modern Physics, Jilin University, Hunan University, Chung-Ang University, Shandong University, Yunnan University, Helmholtz Institute Mainz, University of South China, University of Jinan, Liaoning University, Sun Yat-sen University, Università degli Studi del Piemonte Orientale “Amedeo Avogadro”, University of Oxford, University of Ferrara, University of Manchester, GSI Helmholtz Centre for Heavy Ion Research, Guangxi University, Henan University of Technology, Nanjing Normal University, Shandong Normal University, Fudan University, Indiana University, Henan Normal University, University of Hawaiʻi at Mānoa, University of Hawaii System, Suranaree University of Technology, South China Normal University, University of the Punjab, Liaoning Normal University, Hangzhou Normal University, Huangshan University, University of Tarapacá, University of Groningen, Justus-Liebig-Universität Gießen, Qufu Normal University, Renmin University of China, Lanzhou University, Hebei University, Sichuan University, Guangxi Normal University, Shanxi University, Central China Normal University, Henan University of Science and Technology, Central South University, Zhejiang University, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, COMSATS University Islamabad, University of Perugia, Hunan Normal University, China Center of Advanced Science and Technology, Shanghai Jiao Tong University, Near East University, University of Science and Technology Liaoning, Inner Mongolia University, Yantai University, Beihang University, Henan University, Shanxi Normal University
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,750
Funders: Institute of Nuclear and Particle Physics, Shanghai Jiao Tong University, U.S. Department of Energy, Strong, Royal Society, European Commission, Deutsche Forschungsgemeinschaft, National Natural Science Foundation of China, Chinese Academy of Sciences, Dementia Collaborative Research Centres, Australia, National Science and Technology Development Agency, Stiftelsen Olle Engkvist Byggmästare, Suranaree University of Technology, Vetenskapsrådet, University of Science and Technology of China, Istituto Nazionale di Fisica Nucleare, Kalkinma Bakanliği, CAS Center for Excellence in Particle Physics, Shanghai Key Laboratory for Particle Physics and Cosmology, Thailand Science Research and Innovation, Science and Technology Facilities Council, Instituto Nazionale di Fisica Nucleare, Institute of High Energy Physics, National Key Research and Development Program of China, Key Research Program of Frontier Science, Chinese Academy of Sciences, H2020 European Research Council, HORIZON EUROPE Marie Sklodowska-Curie Actions
Awards: G1094733649, G1103821969, G1319464221, G1364587400, BEPCII/BESIII重粲结构精细扫描和QCD实验研究, G1489895159, G1586879573, G1612394202, G1652990914, G1755632130, G1799343571, G1907155555, G2027546436, BESIII上正反超子对关联产生及其衰变的实验研究, G2084762544, G222768804, G2356664819, G2367247157, G2505060883, G2722488140, G2777307501, G2986027706, G328816031, G333704919, G3427629783, BESIII上胶球的寻找和轻介子谱的研究, G3534486373, G3790219004, G4282889152, G4290898535, G434337789, G4572921197, G4799279977, G4883783264, BESIII实验类粲偶素的寻找和研究, The search for new physics through precision measurements of the CKM angle gamma, UNDERSTANDING QCD IN THE LIGHT MESON SECTOR (WITH EMPHASIS ON MAPPING GLUONIC EXCITATIONS)..., G5683025203, G5840487836, G5877620027, G6040273958, G6119985531, G6120316000, G6165558423, G6212622042, G6234463375, 北京谱仪III上Ds衰变的实验研究, G6324317254, G6371861488, 北京正负电子对撞机BESIII实验上粲重子Λc研究, G6654425054, G6746531785, G6771002387, G6789096068, G6927153966, G7301034409, Search for the scalar glueball in a coupled channel amplitude analysis of J/psi decays with the BESIII experiment, G7356081053, 北京谱仪III上奇异介子和奇异夸克偶素的实验研究, G7733589329, G783835211, G7964951191, G8146335776, G8158558910, G8171898834, G8292866527, G834514387, G8396383697, G8558816334, G868043634, Suche nach seltsamen VierQuarkZuständen im CharmoniumSektor an BESIII, UNDERSTANDING QCD IN THE LIGHT MESON SECTOR (WITH EXPHASIS ON MAPPING GLUONIC EXCITATIONS) USING PION AND PHOTON PROBES, G8776819963, G8944097419, G945438540, G983105509
OpenAlex ID: W4410302391