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Determination of Spin-Parity Quantum Numbers of X(2370) as 0−+ from J/ψ→γKS0KS0η′

  • Published:2024-05-02 Issue:18 Volume:132 Page:
  • ISSN:0031-9007
  • Container-title:Physical Review Letters
  • language:en
  • Short-container-title:Phys. Rev. Lett.

Author:

Ablikim M.1,Achasov M. N.2,Adlarson P.3,Ai X. C.4,Aliberti R.5,Amoroso A.67,An M. R.8,An Q.910,Bai Y.11,Bakina O.12,Balossino I.13,Ban Y.14,Bao H.-R.15,Batozskaya V.116,Begzsuren K.17,Berger N.5,Berlowski M.16,Bertani M.18,Bettoni D.13,Bianchi F.67,Bianco E.67,Bortone A.67,Boyko I.12,Briere R. A.19,Brueggemann A.20,Cai H.21,Cai X.110,Calcaterra A.18,Cao G. F.115,Cao N.115,Cetin S. A.22,Chang J. F.110,Chang W. L.115,Che G. R.23,Chelkov G.12,Chen C.23,Chen Chao24,Chen G.1,Chen H. S.115,Chen M. L.11015,Chen S. J.25,Chen S. L.26,Chen S. M.27,Chen T.115,Chen X. R.2815,Chen X. T.115,Chen Y. B.110,Chen Y. Q.29,Chen Z. J.30,Choi S. K.31,Chu X.23,Cibinetto G.13,Coen S. C.32,Cossio F.7,Cui J. J.33,Dai H. L.110,Dai J. P.34,Dbeyssi A.35,de Boer R. E.32,Dedovich D.12,Deng Z. Y.1,Denig A.5,Denysenko I.12,Destefanis M.67,De Mori F.67,Ding B.361,Ding X. X.14,Ding Y.29,Ding Y.37,Dong J.110,Dong L. Y.115,Dong M. Y.11015,Dong X.21,Du M. C.1,Du S. X.4,Duan Z. H.25,Egorov P.12,Fan Y. H.26,Fang J.110,Fang S. S.115,Fang W. X.1,Fang Y.1,Fang Y. Q.110,Farinelli R.13,Fava L.387,Feldbauer F.32,Felici G.18,Feng C. Q.910,Feng J. H.39,Feng Y. T.9,Fischer K.40,Fritsch M.32,Fu C. D.1,Fu J. L.15,Fu Y. W.1,Gao H.15,Gao Y. N.14,Gao Yang910,Garbolino S.7,Garzia I.1341,Ge P. T.21,Ge Z. W.25,Geng C.39,Gersabeck E. M.42,Gilman A.40,Goetzen K.43,Gong L.37,Gong W. X.110,Gradl W.5,Gramigna S.1341,Greco M.67,Gu M. H.110,Gu Y. T.44,Guan C. Y.115,Guan Z. L.45,Guo A. Q.2815,Guo L. B.46,Guo M. J.33,Guo R. P.47,Guo Y. P.48,Guskov A.12,Gutierrez J.49,Han K. L.15,Han T. T.1,Han W. Y.8,Hao X. Q.50,Harris F. A.51,He K. K.24,He K. L.115,Heinsius F. H. H.32,Heinz C. H.5,Heng Y. K.11015,Herold C.52,Holtmann T.32,Hong P. C.48,Hou G. Y.115,Hou X. T.115,Hou Y. R.15,Hou Z. L.1,Hu B. Y.39,Hu H. M.115,Hu J. F.53,Hu T.11015,Hu Y.1,Huang G. S.910,Huang K. X.39,Huang L. Q.2815,Huang X. T.33,Huang Y. P.1,Hussain T.54,Hüsken N.495,in der Wiesche N.20,Irshad M.910,Jackson J.49,Jaeger S.32,Janchiv S.17,Jeong J. H.31,Ji Q.1,Ji Q. P.50,Ji X. B.115,Ji X. L.110,Ji Y. Y.33,Jia X. Q.33,Jia Z. K.910,Jiang H. B.21,Jiang P. C.14,Jiang S. S.8,Jiang T. J.55,Jiang X. S.11015,Jiang Y.15,Jiao J. B.33,Jiao Z.56,Jin S.25,Jin Y.36,Jing M. Q.115,Jing X. M.15,Johansson T.3,Kui X.1,Kabana S.57,Kalantar-Nayestanaki N.58,Kang X. L.59,Kang X. S.37,Kavatsyuk M.58,Ke B. C.4,Khachatryan V.49,Khoukaz A.20,Kiuchi R.1,Kolcu O. B.22,Kopf B.32,Kuessner M.32,Kupsc A.163,Kühn W.60,Lane J. J.42,Larin P.35,Lavezzi L.67,Lei T. T.910,Lei Z. H.910,Leithoff H.5,Lellmann M.5,Lenz T.5,Li C.61,Li C.23,Li C. H.8,Li Cheng910,Li D. M.4,Li F.110,Li G.1,Li H.910,Li H. B.115,Li H. J.50,Li H. N.53,Li Hui23,Li J. R.27,Li J. S.39,Li J. W.33,Li Ke1,Li L. J.115,Li L. K.1,Li Lei62,Li M. H.23,Li P. R.63,Li Q. X.33,Li S. X.48,Li T.33,Li W. D.115,Li W. G.1,Li X. H.910,Li X. L.33,Li Xiaoyu115,Li Y. G.14,Li Z. J.39,Li Z. X.44,Liang C.25,Liang H.115,Liang H.910,Liang Y. F.64,Liang Y. T.2815,Liao G. R.65,Liao L. Z.33,Liao Y. P.115,Libby J.66,Limphirat A.52,Lin D. X.2815,Lin T.1,Liu B. J.1,Liu B. X.21,Liu C.29,Liu C. X.1,Liu F. H.67,Liu Fang1,Liu Feng68,Liu G. M.53,Liu H.63,Liu H. B.44,Liu H. M.115,Liu Huanhuan1,Liu Huihui69,Liu J. B.910,Liu J. Y.115,Liu K.63,Liu K. Y.37,Liu Ke45,Liu L.910,Liu L. C.23,Liu Lu23,Liu M. H.48,Liu P. L.1,Liu Q.15,Liu S. B.910,Liu T.48,Liu W. K.23,Liu W. M.910,Liu X.63,Liu Y.4,Liu Y.63,Liu Y. B.23,Liu Z. A.11015,Liu Z. Q.33,Lou X. C.11015,Lu F. X.39,Lu H. J.56,Lu J. G.110,Lu X. L.1,Lu Y.70,Lu Y. P.110,Lu Z. H.115,Luo C. L.46,Luo M. X.71,Luo T.48,Luo X. L.110,Lyu X. R.15,Lyu Y. F.23,Ma F. C.37,Ma H.34,Ma H. L.1,Ma J. L.115,Ma L. L.33,Ma M. M.115,Ma Q. M.1,Ma R. Q.115,Ma X. Y.110,Ma Y.14,Ma Y. M.28,Maas F. E.35,Maggiora M.67,Malde S.40,Malik Q. A.54,Mangoni A.72,Mao Y. J.14,Mao Z. P.1,Marcello S.67,Meng Z. X.36,Messchendorp J. G.4358,Mezzadri G.13,Miao H.115,Min T. J.25,Mitchell R. E.49,Mo X. H.11015,Moses B.49,Muchnoi N. Yu.2,Muskalla J.5,Nefedov Y.12,Nerling F.35,Nikolaev I. B.2,Ning Z.110,Nisar S.73,Niu Q. L.63,Niu W. D.24,Niu Y.33,Olsen S. L.15,Ouyang Q.11015,Pacetti S.7274,Pan X.24,Pan Y.11,Pathak A.29,Patteri P.18,Pei Y. P.910,Pelizaeus M.32,Peng H. P.910,Peng Y. Y.63,Peters K.43,Ping J. L.46,Ping R. G.115,Plura S.5,Prasad V.57,Qi F. Z.1,Qi H.910,Qi H. R.27,Qi M.25,Qi T. Y.48,Qian S.110,Qian W. B.15,Qiao C. F.15,Qin J. J.75,Qin L. Q.65,Qin X. S.33,Qin Z. H.110,Qiu J. F.1,Qu S. Q.27,Redmer C. F.5,Ren K. J.8,Rivetti A.7,Rolo M.7,Rong G.115,Rosner Ch.35,Ruan S. N.23,Salone N.16,Sarantsev A.12,Schelhaas Y.5,Schoenning K.3,Scodeggio M.1341,Shan K. Y.48,Shan W.76,Shan X. Y.910,Shangguan J. F.24,Shao L. G.115,Shao M.910,Shen C. P.48,Shen H. F.115,Shen W. H.15,Shen X. Y.115,Shi B. A.15,Shi H. C.910,Shi J. L.48,Shi J. Y.1,Shi Q. Q.24,Shi R. S.115,Shi X.110,Song J. J.50,Song T. Z.39,Song W. M.291,Song Y. J.48,Sosio S.67,Spataro S.67,Stieler F.5,Su Y. J.15,Sun G. B.21,Sun G. X.1,Sun H.15,Sun H. K.1,Sun J. F.50,Sun K.27,Sun L.21,Sun S. S.115,Sun T.77,Sun W. Y.29,Sun Y.59,Sun Y. J.910,Sun Y. Z.1,Sun Z. T.33,Tan Y. X.910,Tang C. J.64,Tang G. Y.1,Tang J.39,Tang Y. A.21,Tao L. Y.75,Tao Q. T.30,Tat M.40,Teng J. X.910,Thoren V.3,Tian W. H.78,Tian W. H.39,Tian Y.2815,Tian Z. F.21,Uman I.79,Wan Y.24,Wang S. J.33,Wang B.1,Wang B. L.15,Wang Bo910,Wang C. W.25,Wang D. Y.14,Wang F.75,Wang H. J.63,Wang J. P.33,Wang K.110,Wang L. L.1,Wang M.33,Wang Meng115,Wang N. Y.15,Wang S.63,Wang S.48,Wang T.48,Wang T. J.23,Wang W.39,Wang W.75,Wang W. P.910,Wang X.14,Wang X. F.63,Wang X. J.8,Wang X. L.48,Wang Y.27,Wang Y. D.26,Wang Y. F.11015,Wang Y. L.50,Wang Y. N.26,Wang Y. Q.1,Wang Yaqian801,Wang Yi27,Wang Z.110,Wang Z. L.75,Wang Z. Y.115,Wang Ziyi15,Wei D.81,Wei D. H.65,Weidner F.20,Wen S. P.1,Wenzel C. W.32,Wiedner U.32,Wilkinson G.40,Wolke M.3,Wollenberg L.32,Wu C.8,Wu J. F.182,Wu L. H.1,Wu L. J.115,Wu X.48,Wu X. H.29,Wu Y.9,Wu Y. H.24,Wu Y. J.28,Wu Z.110,Xia L.910,Xian X. M.8,Xiang T.14,Xiao D.63,Xiao G. Y.25,Xiao S. Y.1,Xiao Y. L.48,Xiao Z. J.46,Xie C.25,Xie X. H.14,Xie Y.33,Xie Y. G.110,Xie Y. H.68,Xie Z. P.910,Xing T. Y.115,Xu C. F.115,Xu C. J.39,Xu G. F.1,Xu H. Y.36,Xu Q. J.55,Xu Q. N.83,Xu W.1,Xu W. L.36,Xu X. P.24,Xu Y. C.84,Xu Z. P.25,Xu Z. S.15,Yan F.48,Yan L.48,Yan W. B.910,Yan W. C.4,Yan X. Q.1,Yang H. J.77,Yang H. L.29,Yang H. X.1,Yang Tao1,Yang Y.48,Yang Y. F.23,Yang Y. X.115,Yang Yifan115,Yang Z. W.63,Yao Z. P.33,Ye M.110,Ye M. H.82,Yin J. H.1,You Z. Y.39,Yu B. X.11015,Yu C. X.23,Yu G.115,Yu J. S.30,Yu T.75,Yu X. D.14,Yuan C. Z.115,Yuan L.85,Yuan S. C.1,Yuan Y.115,Yuan Z. Y.39,Yue C. X.8,Zafar A. A.54,Zeng F. R.33,Zeng S. H.75,Zeng X.48,Zeng Y.30,Zeng Y. J.115,Zhai X. Y.29,Zhai Y. C.33,Zhan Y. H.39,Zhang A. Q.115,Zhang B. L.115,Zhang B. X.1,Zhang D. H.23,Zhang G. Y.50,Zhang H.9,Zhang H. C.11015,Zhang H. H.39,Zhang H. H.29,Zhang H. Q.11015,Zhang H. Y.110,Zhang J.39,Zhang J.4,Zhang J. J.78,Zhang J. L.86,Zhang J. Q.46,Zhang J. W.11015,Zhang J. X.63,Zhang J. Y.1,Zhang J. Z.115,Zhang Jianyu15,Zhang L. M.27,Zhang L. Q.39,Zhang Lei25,Zhang P.115ORCID,Zhang Q. Y.84,Zhang Shuihan115,Zhang Shulei30,Zhang X. D.26,Zhang X. M.1,Zhang X. Y.33,Zhang Y.40,Zhang Y.75,Zhang Y. T.4,Zhang Y. H.110,Zhang Yan910,Zhang Yao1,Zhang Z. D.1,Zhang Z. H.1,Zhang Z. L.29,Zhang Z. Y.21,Zhang Z. Y.23,Zhao G.1,Zhao J. Y.115,Zhao J. Z.110,Zhao Lei910,Zhao Ling1,Zhao M. G.23,Zhao R. P.15,Zhao S. J.4,Zhao Y. B.110,Zhao Y. X.2815,Zhao Z. G.910,Zhemchugov A.12,Zheng B.75,Zheng J. P.110,Zheng W. J.115,Zheng Y. H.15,Zhong B.46,Zhong X.39,Zhou H.33,Zhou L. P.115,Zhou X.21,Zhou X. K.68,Zhou X. R.910,Zhou X. Y.8,Zhou Y. Z.48,Zhu J.23,Zhu K.1,Zhu K. J.11015,Zhu L.29,Zhu L. X.15,Zhu S. H.81,Zhu S. Q.25,Zhu T. J.48,Zhu W. J.48,Zhu Y. C.910,Zhu Z. A.115,Zou J. H.1,Zu J.910,

Affiliation:

1. Institute of High Energy Physics, Beijing 100049, People’s Republic of China

2. Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk 630090, Russia

3. Uppsala University, Box 516, SE-75120 Uppsala, Sweden

4. Zhengzhou University, Zhengzhou 450001, People’s Republic of China

5. Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany

6. University of Turin and INFN, University of Turin, I-10125 Turin, Italy

7. INFN, I-10125 Turin, Italy

8. Liaoning Normal University, Dalian 116029, People’s Republic of China

9. University of Science and Technology of China, Hefei 230026, People’s Republic of China

10. State Key Laboratory of Particle Detection and Electronics, Beijing 100049, Hefei 230026, People’s Republic of China

11. Southeast University, Nanjing 211100, People’s Republic of China

12. Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia

13. INFN Sezione di Ferrara, INFN Sezione di Ferrara, I-44122 Ferrara, Italy

14. Peking University, Beijing 100871, People’s Republic of China

15. University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China

16. National Centre for Nuclear Research, Warsaw 02-093, Poland

17. Institute of Physics and Technology, Peace Avenue 54B, Ulaanbaatar 13330, Mongolia

18. INFN Laboratori Nazionali di Frascati, INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy

19. Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA

20. University of Muenster, Wilhelm-Klemm-Strasse 9, 48149 Muenster, Germany

21. Wuhan University, Wuhan 430072, People’s Republic of China

22. Turkish Accelerator Center Particle Factory Group, Istinye University, 34010, Istanbul, Turkey

23. Nankai University, Tianjin 300071, People’s Republic of China

24. Soochow University, Suzhou 215006, People’s Republic of China

25. Nanjing University, Nanjing 210093, People’s Republic of China

26. North China Electric Power University, Beijing 102206, People’s Republic of China

27. Tsinghua University, Beijing 100084, People’s Republic of China

28. Institute of Modern Physics, Lanzhou 730000, People’s Republic of China

29. Jilin University, Changchun 130012, People’s Republic of China

30. Hunan University, Changsha 410082, People’s Republic of China

31. Chung-Ang University, Seoul, 06974, Republic of Korea

32. Bochum Ruhr-University, D-44780 Bochum, Germany

33. Shandong University, Jinan 250100, People’s Republic of China

34. Yunnan University, Kunming 650500, People’s Republic of China

35. Helmholtz Institute Mainz, Staudinger Weg 18, D-55099 Mainz, Germany

36. University of Jinan, Jinan 250022, People’s Republic of China

37. Liaoning University, Shenyang 110036, People’s Republic of China

38. University of Eastern Piedmont, I-15121 Alessandria, Italy

39. Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China

40. University of Oxford, Keble Road, Oxford OX13RH, United Kingdom

41. University of Ferrara, I-44122 Ferrara, Italy

42. University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom

43. GSI Helmholtzcentre for Heavy Ion Research GmbH, D-64291 Darmstadt, Germany

44. Guangxi University, Nanning 530004, People’s Republic of China

45. Henan University of Technology, Zhengzhou 450001, People’s Republic of China

46. Nanjing Normal University, Nanjing 210023, People’s Republic of China

47. Shandong Normal University, Jinan 250014, People’s Republic of China

48. Fudan University, Shanghai 200433, People’s Republic of China

49. Indiana University, Bloomington, Indiana 47405, USA

50. Henan Normal University, Xinxiang 453007, People’s Republic of China

51. University of Hawaii, Honolulu, Hawaii 96822, USA

52. Suranaree University of Technology, University Avenue 111, Nakhon Ratchasima 30000, Thailand

53. South China Normal University, Guangzhou 510006, People’s Republic of China

54. University of the Punjab, Lahore-54590, Pakistan

55. Hangzhou Normal University, Hangzhou 310036, People’s Republic of China

56. Huangshan College, Huangshan 245000, People’s Republic of China

57. Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica 1000000, Chile

58. University of Groningen, NL-9747 AA Groningen, The Netherlands

59. China University of Geosciences, Wuhan 430074, People’s Republic of China

60. Justus-Liebig-Universitaet Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany

61. Qufu Normal University, Qufu 273165, People’s Republic of China

62. Renmin University of China, Beijing 100872, People’s Republic of China

63. Lanzhou University, Lanzhou 730000, People’s Republic of China

64. Sichuan University, Chengdu 610064, People’s Republic of China

65. Guangxi Normal University, Guilin 541004, People’s Republic of China

66. Indian Institute of Technology Madras, Chennai 600036, India

67. Shanxi University, Taiyuan 030006, People’s Republic of China

68. Central China Normal University, Wuhan 430079, People’s Republic of China

69. Henan University of Science and Technology, Luoyang 471003, People’s Republic of China

70. Central South University, Changsha 410083, People’s Republic of China

71. Zhejiang University, Hangzhou 310027, People’s Republic of China

72. INFN Sezione di Perugia, I-06100, Perugia, Italy

73. COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, 54000 Lahore, Pakistan

74. University of Perugia, I-06100, Perugia, Italy

75. University of South China, Hengyang 421001, People’s Republic of China

76. Hunan Normal University, Changsha 410081, People’s Republic of China

77. Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China

78. Shanxi Normal University, Linfen 041004, People’s Republic of China

79. Near East University, Nicosia, North Cyprus, 99138, Mersin 10, Turkey

80. Hebei University, Baoding 071002, People’s Republic of China

81. University of Science and Technology Liaoning, Anshan 114051, People’s Republic of China

82. China Center of Advanced Science and Technology, Beijing 100190, People’s Republic of China

83. Inner Mongolia University, Hohhot 010021, People’s Republic of China

84. Yantai University, Yantai 264005, People’s Republic of China

85. Beihang University, Beijing 100191, People’s Republic of China

86. Henan University, Kaifeng 475004, People’s Republic of China

Abstract

Based on (10087±44)×106  J/ψ events collected with the BESIII detector, a partial wave analysis of the decay J/ψ→γKS0KS0η′ is performed. The mass and width of the X(2370) are measured to be 2395±11(stat)−94+26(syst)  MeV/c2 and 188−17+18(stat)−33+124(syst)  MeV, respectively. The corresponding product branching fraction is B[J/ψ→γX(2370)]×B[X(2370)→f0(980)η′]×B[f0(980)→KS0KS0]=(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. Published by the American Physical Society 2024

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Chinese Academy of Sciences

CAS Center for Excellence in Particle Physics

Key Research Program of Frontier Science, Chinese Academy of Sciences

Shanghai Key Laboratory for Particle Physics and Cosmology

HORIZON EUROPE Marie Sklodowska-Curie Actions

Deutsche Forschungsgemeinschaft

Dementia Collaborative Research Centres, Australia

Instituto Nazionale di Fisica Nucleare

Kalkinma Bakanliği

National Research Foundation of Korea

National Science and Technology Development Agency

Narodowe Centrum Nauki

Vetenskapsrådet

U.S. Department of Energy

100 Talents Program of CAS

Institute of Nuclear and Particle Physics

National Science Research and Innovation Fund

Human Resources & Institutional Development, Research and Innovation

Publisher

American Physical Society (APS)

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