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

被引：74

作者：

Ablikim, M. ^{[1
]}

Achasov, M. N. ^{[4
,89
]}

Adlarson, P. ^{[82
]}

Ai, X. C. ^{[87
]}

Aliberti, R. ^{[38
]}

Amoroso, A. ^{[78
,79
,81
]}

An, M. R. ^{[42
]}

An, Q. ^{[61
,75
]}

Bai, Y. ^{[60
]}

Bakina, O. ^{[39
]}

Balossino, I. ^{[31
]}

Ban, Y. ^{[49
,97
]}

Bao, H. -R. ^{[67
]}

Batozskaya, V. ^{[1
,47
]}

Begzsuren, K. ^{[35
]}

Berger, N. ^{[38
]}

Berlowski, M. ^{[47
]}

Bertani, M. ^{[28
]}

Bettoni, D. ^{[31
]}

Bianchi, F. ^{[78
,79
,81
]}

Bianco, E. ^{[78
,79
,81
]}

Bortone, A. ^{[78
,79
,81
]}

Boyko, I. ^{[39
]}

Briere, R. A. ^{[5
]}

Brueggemann, A. ^{[72
]}

Cai, H. ^{[83
]}

Cai, X. ^{[1
,61
]}

Calcaterra, A. ^{[28
]}

Cao, G. F. ^{[1
,67
]}

Cao, N. ^{[1
,67
]}

Cetin, S. A. ^{[65
]}

Chang, J. F. ^{[1
,61
]}

Chang, W. L. ^{[1
,67
]}

Che, G. R. ^{[46
]}

Chelkov, G. ^{[39
,88
]}

Chen, C. ^{[46
]}

Chen, Chao ^{[58
]}

Chen, G. ^{[1
]}

Chen, H. S. ^{[1
,67
]}

Chen, M. L. ^{[1
,61
,67
]}

Chen, S. J. ^{[45
]}

Chen, S. L. ^{[48
]}

Chen, S. M. ^{[64
]}

Chen, T. ^{[1
,67
]}

Chen, X. R. ^{[34
,67
]}

Chen, X. T. ^{[1
,67
]}

Chen, Y. B. ^{[1
,61
]}

Chen, Y. Q. ^{[37
]}

Chen, Z. J. ^{[98
]}

Choi, S. K. ^{[10
]}

机构：

[1] Inst High Energy Phys, Beijing 100049, Peoples R China

[2] Beihang Univ, Beijing 100191, Peoples R China

[3] Bochum Ruhr Univ, D-44780 Bochum, Germany

[4] Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia

[5] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[6] Cent China Normal Univ, Wuhan 430079, Peoples R China

[7] Cent South Univ, Changsha 410083, Peoples R China

[8] China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China

[9] China Univ Geosci, Wuhan 430074, Peoples R China

[10] Chung Ang Univ, Seoul 06974, South Korea

[11] COMSATS Univ Islamabad, Lahore Campus,Def Rd,Off Raiwind Rd, Lahore 54000, Pakistan

[12] Fudan Univ, Shanghai 200433, Peoples R China

[13] GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany

[14] Guangxi Normal Univ, Guilin 541004, Peoples R China

[15] Guangxi Univ, Nanning 530004, Peoples R China

[16] Hangzhou Normal Univ, Hangzhou 310036, Peoples R China

[17] Hebei Univ, Baoding 071002, Peoples R China

[18] Helmholtz Inst Mainz, Staudinger Weg 18, D-55099 Mainz, Germany

[19] Henan Normal Univ, Xinxiang 453007, Henan, Peoples R China

[20] Henan Univ, Kaifeng 475004, Peoples R China

[21] Henan Univ Sci & Technol, Luoyang 471003, Peoples R China

[22] Henan Univ Technol, Zhengzhou 450001, Peoples R China

[23] Huangshan Coll, Huangshan 245000, Peoples R China

[24] Hunan Normal Univ, Changsha 410081, Peoples R China

[25] Hunan Univ, Changsha 410082, Peoples R China

[26] Indian Inst Technol Madras, Chennai 600036, Tamil Nadu, India

[27] Indiana Univ, Bloomington, IN 47405 USA

[28] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[29] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy

[30] Univ Perugia, I-06100 Perugia, Italy

[31] Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy

[32] Univ Ferrara, I-44122 Ferrara, Italy

[33] Inner Mongolia Univ, Hohhot 010021, Peoples R China

[34] Inst Modern Phys, Lanzhou 730000, Peoples R China

[35] Inst Phys & Technol, Peace Ave 54B, Ulaanbaatar 13330, Mongolia

[36] Univ Tarapaca, Inst Alta Invest, Casilla 7D, Arica 1000000, Chile

[37] Jilin Univ, Changchun 130012, Peoples R China

[38] Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany

[39] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia

[40] Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany

[41] Lanzhou Univ, Lanzhou 730000, Peoples R China

[42] Liaoning Normal Univ, Dalian 116029, Peoples R China

[43] Liaoning Univ, Shenyang 110036, Peoples R China

[44] Nanjing Normal Univ, Nanjing 210023, Peoples R China

[45] Nanjing Univ, Nanjing 210093, Peoples R China

[46] Nankai Univ, Tianjin 300071, Peoples R China

[47] Natl Ctr Nucl Res, PL-02093 Warsaw, Poland

[48] North China Elect Power Univ, Beijing 102206, Peoples R China

[49] Peking Univ, Beijing 100871, Peoples R China

[50] Qufu Normal Univ, Qufu 273165, Shandong, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 132卷 / 18期

基金：

国家重点研发计划; 中国国家自然科学基金; 新加坡国家研究基金会; 瑞典研究理事会;

关键词：

GLUEBALLS; DECAY;

D O I：

10.1103/PhysRevLett.132.181901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Based on (10087 +/- 44) x 10(6) J/psi events collected with the BESIII detector, a partial wave analysis of the decay J/psi -> gamma(KSKS0)-K-0 eta ' 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/psi -> gamma X(2370) x B[X (2370) -> f(0) (980)eta '] x B[f(0)(980) -> (KSKS0)-K-0] = (1.31 +/- 0.22) (stat)(-0.84)(+2.85) (syst) x 10(-5). The statistical significance of the X(2370) is greater than 11 .7 sigma 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.

引用

页数：9

共 39 条

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