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Determination of Spin-Parity Quantum Numbers of X(2370) as 0
Ablikim, M; Achasov, M N; Adlarson, P; Ai, X C; Aliberti, R; Amoroso, A; An, M R; An, Q; Bai, Y; Bakina, O; Balossino, I; Ban, Y; Bao, H-R; Batozskaya, V; Begzsuren, K; Berger, N; Berlowski, M; Bertani, M; Bettoni, D; Bianchi, F; Bianco, E; Bortone, A; Boyko, I; Briere, R A; Brueggemann, A; Cai, H; Cai, X; Calcaterra, A; Cao, G F; Cao, N; Cetin, S A; Chang, J F; Chang, W L; Che, G R; Chelkov, G; Chen, C; Chen, Chao; Chen, G; Chen, H S; Chen, M L; Chen, S J; Chen, S L; Chen, S M; Chen, T; Chen, X R; Chen, X T; Chen, Y B; Chen, Y Q; Chen, Z J; Choi, S K.
Afiliação
  • Ablikim M; Institute of High Energy Physics, Beijing 100049, People's Republic of China.
  • Achasov MN; Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk 630090, Russia.
  • Adlarson P; Uppsala University, Box 516, SE-75120 Uppsala, Sweden.
  • Ai XC; Zhengzhou University, Zhengzhou 450001, People's Republic of China.
  • Aliberti R; Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany.
  • Amoroso A; University of Turin and INFN, University of Turin, I-10125 Turin, Italy.
  • An MR; INFN, I-10125 Turin, Italy.
  • An Q; Liaoning Normal University, Dalian 116029, People's Republic of China.
  • Bai Y; State Key Laboratory of Particle Detection and Electronics, Beijing 100049, Hefei 230026, People's Republic of China.
  • Bakina O; University of Science and Technology of China, Hefei 230026, People's Republic of China.
  • Balossino I; Southeast University, Nanjing 211100, People's Republic of China.
  • Ban Y; Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia.
  • Bao HR; INFN Sezione di Ferrara, INFN Sezione di Ferrara, I-44122 Ferrara, Italy.
  • Batozskaya V; Peking University, Beijing 100871, People's Republic of China.
  • Begzsuren K; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
  • Berger N; Institute of High Energy Physics, Beijing 100049, People's Republic of China.
  • Berlowski M; National Centre for Nuclear Research, Warsaw 02-093, Poland.
  • Bertani M; Institute of Physics and Technology, Peace Avenue 54B, Ulaanbaatar 13330, Mongolia.
  • Bettoni D; Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany.
  • Bianchi F; National Centre for Nuclear Research, Warsaw 02-093, Poland.
  • Bianco E; INFN Laboratori Nazionali di Frascati, INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
  • Bortone A; INFN Sezione di Ferrara, INFN Sezione di Ferrara, I-44122 Ferrara, Italy.
  • Boyko I; University of Turin and INFN, University of Turin, I-10125 Turin, Italy.
  • Briere RA; INFN, I-10125 Turin, Italy.
  • Brueggemann A; University of Turin and INFN, University of Turin, I-10125 Turin, Italy.
  • Cai H; INFN, I-10125 Turin, Italy.
  • Cai X; University of Turin and INFN, University of Turin, I-10125 Turin, Italy.
  • Calcaterra A; INFN, I-10125 Turin, Italy.
  • Cao GF; Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia.
  • Cao N; Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
  • Cetin SA; University of Muenster, Wilhelm-Klemm-Strasse 9, 48149 Muenster, Germany.
  • Chang JF; Wuhan University, Wuhan 430072, People's Republic of China.
  • Chang WL; Institute of High Energy Physics, Beijing 100049, People's Republic of China.
  • Che GR; State Key Laboratory of Particle Detection and Electronics, Beijing 100049, Hefei 230026, People's Republic of China.
  • Chelkov G; INFN Laboratori Nazionali di Frascati, INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
  • Chen C; Institute of High Energy Physics, Beijing 100049, People's Republic of China.
  • Chen C; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
  • Chen G; Institute of High Energy Physics, Beijing 100049, People's Republic of China.
  • Chen HS; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
  • Chen ML; Turkish Accelerator Center Particle Factory Group, Istinye University, 34010, Istanbul, Turkey.
  • Chen SJ; Institute of High Energy Physics, Beijing 100049, People's Republic of China.
  • Chen SL; State Key Laboratory of Particle Detection and Electronics, Beijing 100049, Hefei 230026, People's Republic of China.
  • Chen SM; Institute of High Energy Physics, Beijing 100049, People's Republic of China.
  • Chen T; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
  • Chen XR; Nankai University, Tianjin 300071, People's Republic of China.
  • Chen XT; Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia.
  • Chen YB; Nankai University, Tianjin 300071, People's Republic of China.
  • Chen YQ; Soochow University, Suzhou 215006, People's Republic of China.
  • Chen ZJ; Institute of High Energy Physics, Beijing 100049, People's Republic of China.
  • Choi SK; Institute of High Energy Physics, Beijing 100049, People's Republic of China.
Phys Rev Lett ; 132(18): 181901, 2024 May 03.
Article em En | MEDLINE | ID: mdl-38759175
ABSTRACT
Based on (10087±44)×10^{6} J/ψ events collected with the BESIII detector, a partial wave analysis of the decay J/ψ→γK_{S}^{0}K_{S}^{0}η^{'} is performed. The mass and width of the X(2370) are measured to be 2395±11(stat)_{-94}^{+26}(syst) MeV/c^{2} and 188_{-17}^{+18}(stat)_{-33}^{+124}(syst) MeV, respectively. The corresponding product branching fraction is B[J/ψ→γX(2370)]×B[X(2370)→f_{0}(980)η^{'}]×B[f_{0}(980)→K_{S}^{0}K_{S}^{0}]=(1.31±0.22(stat)_{-0.84}^{+2.85}(syst))×10^{-5}. The statistical significance of the X(2370) is greater than 11.7σ and the spin parity is determined to be 0^{-+} for the first time. The measured mass and spin parity of the X(2370) are consistent with the predictions of the lightest pseudoscalar glueball.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article