Study of the e+e- → π+ π- ω process at center-of-mass energies between 4.0 and 4.6 GeV

被引：4

作者：

Ablikim, M. ^{[1
]}

Achasov, M. N. ^{[11
,85
]}

Adlarson, P. ^{[78
]}

Albrecht, M. ^{[4
]}

Aliberti, R. ^{[34
]}

Amoroso, A. ^{[74
,75
,77
]}

An, M. R. ^{[38
]}

An, Q. ^{[56
,57
,71
]}

Bai, Y. ^{[55
]}

Bakina, O. ^{[35
]}

Baldini Ferroli, R. ^{[26
]}

Balossino, I. ^{[29
]}

Ban, Y. ^{[45
,93
]}

Batozskaya, V. ^{[1
,43
]}

Becker, D. ^{[34
]}

Begzsuren, K. ^{[32
]}

Berger, N. ^{[34
]}

Bertani, M. ^{[26
]}

Bettoni, D. ^{[29
]}

Bianchi, F. ^{[74
,75
,77
]}

Bianco, E. ^{[74
,77
]}

Bloms, J. ^{[68
]}

Bortone, A. ^{[74
,75
,77
]}

Boyko, I. ^{[35
]}

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

Brueggemann, A. ^{[68
]}

Cai, H. ^{[79
]}

Cai, X. ^{[1
,56
,57
]}

Calcaterra, A. ^{[26
]}

Cao, G. F. ^{[1
,63
]}

Cao, N. ^{[1
,63
]}

Cetin, S. A. ^{[61
]}

Chang, J. F. ^{[1
,56
,57
]}

Chang, W. L. ^{[1
,63
]}

Che, G. R. ^{[42
]}

Chelkov, G. ^{[35
,84
]}

Chen, C. ^{[42
]}

Chen, Chao ^{[53
]}

Chen, G. ^{[1
]}

Chen, H. S. ^{[1
,63
]}

Chen, M. L. ^{[1
,56
,57
]}

Chen, S. J. ^{[41
]}

Chen, S. M. ^{[60
]}

Chen, T. ^{[1
]}

Chen, X. R. ^{[31
,63
]}

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

Chen, Y. B. ^{[1
,56
,57
]}

Chen, Z. J. ^{[23
,94
]}

Cheng, W. S. ^{[77
]}

Choi, S. K. ^{[53
]}

机构：

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

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

[3] Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[25] Indiana Univ, Bloomington, IN 47405 USA

[26] INFN, Lab Nazl Frascati, I-00044 Frascati, Italy

[27] INFN, Sez Perugia, I-06100 Perugia, Italy

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

[29] INFN, Sez Ferrara, I-44122 Ferrara, Italy

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

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

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

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

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

[35] Joint Inst Nucl Res, Dubna 141980, Moscow, Russia

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

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

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

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

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

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

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

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

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

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

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

[47] Shandong Normal Univ, Jinan 250014, Peoples R China

[48] Shandong Univ, Jinan 250100, Peoples R China

[49] Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China

[50] Shanxi Normal Univ, Linfen 041004, Shanxi, Peoples R China

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2023年 / 08期

基金：

中国国家自然科学基金; 瑞典研究理事会;

关键词：

e(+)-e(-) Experiments; QCD; Quarkonium; HADRONIC CONTRIBUTIONS; CROSS-SECTION; PRECISION; ANNIHILATION; PENTAQUARK; STATES;

D O I：

10.1007/JHEP08(2023)159

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Using 15.6 fb(-1) of e(+)e(-) collision data collected at twenty-four center-of-mass energies from 4.0 to 4.6 GeV with the BESIII detector, the helicity amplitudes of the process e(+)e(-) -> (+)pi(-)omega are analyzed for the first time. Born cross section measurements of two-body intermediate resonance states with statistical significance greater than 5 sigma are presented, such as f(0)(500), f(0)(980), f(2)(1270), f(0)(1370), b(1)(1235)(+/-), and rho(1450)(+/-). In addition, evidence of a resonance state in e(+)e(-) -> pi(+)pi(-)omega production is found. The mass of this state obtained by line shape fitting is about 4.2 GeV/c(2), which is consistent with the production of psi(4160) or Y(4220).

引用

页数：32

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