Measurement of e plus e- → Φπ+ π- cross sections at center-of-mass energies from 2.00 to 3.08 GeV

被引：4

作者：

Ablikim, M. ^{[1
]}

Achasov, M. N. ^{[13
]}

Adlarson, P. ^{[71
]}

Aliberti, R. ^{[39
]}

Amoroso, A. ^{[67
,68
,70
]}

An, M. R. ^{[43
]}

An, Q. ^{[52
,53
,64
]}

Bai, Y.

Bakina, O. ^{[40
]}

Balossino, I. ^{[32
]}

Ban, Y. ^{[50
]}

Batozskaya, V. ^{[1
,48
]}

Begzsuren, K. ^{[36
]}

Berger, N. ^{[39
]}

Berlowski, M. ^{[48
]}

Bertani, M. ^{[29
]}

Bettoni, D. ^{[32
]}

Bianchi, F. ^{[67
,68
,70
]}

Bianco, E. ^{[67
,68
,70
]}

Bloms, J. ^{[61
]}

Bortone, A. ^{[67
,68
,70
]}

Boyko, I. ^{[40
]}

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

Brueggemann, A.

Cai, H. ^{[72
]}

Cai, X. ^{[1
,52
,53
]}

Calcaterra, A. ^{[29
]}

Cao, G. F. ^{[1
,56
]}

Cao, N. ^{[1
,56
]}

Cetin, S. A. ^{[54
]}

Chang, J. F. ^{[1
,52
,53
]}

Chang, T. T. ^{[73
]}

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

Che, G. R. ^{[47
]}

Chelkov, G. ^{[40
]}

Chen, C. ^{[4
]}

Chen, Chao ^{[5
]}

Chen, G. ^{[1
]}

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

Chen, M. L. ^{[1
,52
,53
]}

Chen, S. J. ^{[46
]}

Chen, S. M.

Chen, T.

Chen, X. R.

Chen, X. T.

Chen, Y. B.

Chen, Y. Q.

Chen, Z. J.

Cheng, W. S. ^{[70
]}

Choi, S. K.

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] China Univ Geosci, Wuhan 430074, Peoples R China

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

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

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

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

[14] GSI Helmholtzcentre Heavy Ion Res GmbH, D-64291 Darmstadt, Germany

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

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

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

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

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

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

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

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

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

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

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

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

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

[28] Indiana Univ, Bloomington, IN 47405 USA

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

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

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

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

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

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

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

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

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

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

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

[40] Inst Nucl Res, Dubna 141980, Moscow Region, Russia

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

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

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

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

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

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

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

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

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

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

来源：

PHYSICAL REVIEW D | 2023年 / 108卷 / 03期

基金：

瑞典研究理事会; 中国国家自然科学基金; 欧盟地平线“2020”;

关键词：

DECAY; Y(2175); STATE; FIT; TOF;

D O I：

10.1103/PhysRevD.108.032011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using data corresponding to an integrated luminosity of 651 pb-1 accumulated at 22 center-of-mass energies from 2.00 to 3.08 GeV by the BESIII experiment, the process e+e- & RARR; 0ic+ic- is studied. The cross sections for e+e- & RARR; 0ic+ic- are consistent with previous results, but with improved precision. To measure the mass and width of the structure observed in the cross section line shape, a combine fit is performed after enhancing the contribution from 0f0(980). The fit reveals a structure with the mass of M = 2178 +20 +5 MeV=c2 and the width of & UGamma; = 140 +36 +16 MeV, where the first uncertainties are statistical and the second ones are systematic.

引用

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