Study of J/ψ → ωp(p)over-bar at BESIII

被引：24

作者：

Ablikim, M. ^{[1
]}

Achasov, M. N. ^{[6
]}

Albayrak, O. ^{[3
]}

Ambrose, D. J. ^{[43
]}

An, F. F. ^{[1
]}

An, Q. ^{[44
]}

Bai, J. Z. ^{[1
]}

Ferroli, R. Baldini ^{[17
]}

Ban, Y. ^{[28
]}

Becker, J. ^{[2
]}

Bennett, J. V. ^{[16
]}

Bertani, M. ^{[17
]}

Bian, J. M. ^{[42
]}

Boger, E. ^{[21
,53
]}

Bondarenko, O. ^{[22
]}

Boyko, I. ^{[21
]}

Briere, R. A. ^{[3
]}

Bytev, V. ^{[21
]}

Cai, H. ^{[50
]}

Cai, X. ^{[1
]}

Cakir, O. ^{[36
]}

Calcaterra, A. ^{[17
]}

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

Cetin, S. A. ^{[37
]}

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

Chelkov, G. ^{[21
,53
]}

Chen, G.

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

Chen, J. C. ^{[1
]}

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

Chen, S. J. ^{[26
]}

Chen, X. ^{[28
]}

Chen, Y.

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

Cheng, H. P. ^{[14
]}

Chu, Y. P. ^{[1
]}

Cronin-Hennessy, D. ^{[42
]}

Dai, H. L. ^{[1
]}

Dai, J. P. ^{[1
]}

Dedovich, D. ^{[21
]}

Deng, Z. Y. ^{[1
]}

Denig, A. ^{[20
]}

Denysenko, I. ^{[21
]}

Destefanis, M. ^{[47
,49
]}

Ding, W. M. ^{[30
]}

Ding, Y. ^{[24
]}

Dong, L. Y. ^{[1
]}

Dong, M. Y. ^{[1
]}

Du, S. X. ^{[52
]}

Fang, J. ^{[1
]}

机构：

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

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

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

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

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

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

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

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

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

[10] Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China

[11] Helmholtz Inst Mainz, D-55099 Mainz, Germany

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

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

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

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

[16] Indiana Univ, Bloomington, IN 47405 USA

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

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

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

[20] Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany

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

[22] Univ Groningen, KVI, NL-9747 AA Groningen, Netherlands

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

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

[25] Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China

[26] Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China

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

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

[29] Seoul Natl Univ, Seoul 151747, South Korea

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

[31] Shanxi Univ, Taiyuan 030006, Peoples R China

[32] Sichuan Univ, Chengdu 610064, Peoples R China

[33] Soochow Univ, Suzhou 215006, Peoples R China

[34] Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China

[35] Tsinghua Univ, Beijing 100084, Peoples R China

[36] Ankara Univ, TR-06100 Ankara, Turkey

[37] Dogus Univ, TR-34722 Istanbul, Turkey

[38] Uludag Univ, TR-16059 Bursa, Turkey

[39] Univ Giessen, D-35392 Giessen, Germany

[40] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[41] Univ Hawaii, Honolulu, HI 96822 USA

[42] Univ Minnesota, Minneapolis, MN 55455 USA

[43] Univ Rochester, Rochester, NY 14627 USA

[44] Univ Sci & Technol China, Hefei 230026, Peoples R China

[45] Univ South China, Hengyang 421001, Peoples R China

[46] Univ Punjab, Lahore 54590, Pakistan

[47] Univ Turin, I-10125 Turin, Italy

[48] Univ Piemonte Orientale, I-15121 Alessandria, Italy

[49] Ist Nazl Fis Nucl, I-10125 Turin, Italy

[50] Wuhan Univ, Wuhan 430072, Peoples R China

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 11期

基金：

新加坡国家研究基金会; 中国国家自然科学基金; 美国国家科学基金会;

关键词：

THRESHOLD ENHANCEMENT; STATE;

D O I：

10.1103/PhysRevD.87.112004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The decay J/psi -> omega p (p) over bar has been studied, using 225.3 X 10(6) J/psi events accumulated at BESIII. No significant enhancement near the p (p) over bar invariant-mass threshold [denoted as X(p (p) over bar)] is observed. The upper limit of the branching fraction B(J/psi -> omega X(p (p) over bar) -> omega p (p) over bar is determined to be 3.9 X 10(-6) at the 95% confidence level. The branching fraction of J/psi -> omega p (p) over bar is measured to be B(J/psi -> omega p (p) over bar) = (9.0 +/- 0.2(stat) +/- 0. 9(syst) X 10(-4).

引用

页数：8

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