First observation of the decays χcJ → π0π0π0π0

被引：10

作者：

Ablikim, M. ^{[1
]}

Achasov, M. N. ^{[5
]}

An, L. ^{[9
]}

An, Q. ^{[36
]}

An, Z. H. ^{[1
]}

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

Baldini, R. ^{[17
]}

Ban, Y. ^{[23
]}

Becker, J. ^{[2
]}

Berger, N. ^{[1
]}

Bertani, M. ^{[17
]}

Bian, J. M. ^{[1
]}

Boyko, I. ^{[15
]}

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

Bytev, V. ^{[15
]}

Cai, X. ^{[1
]}

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

Cao, X. X. ^{[1
]}

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

Chelkov, G. ^{[15
]}

Chen, G. ^{[1
]}

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

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

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

Chen, S. J. ^{[21
]}

Chen, Y. ^{[1
]}

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

Cheng, H. P. ^{[11
]}

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

Cronin-Hennessy, D. ^{[35
]}

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

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

Dedovich, D. ^{[15
]}

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

Denysenko, I. ^{[15
]}

Destefanis, M. ^{[38
,39
]}

Ding, Y. ^{[19
]}

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

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

Du, S. X. ^{[43
]}

Duan, M. Y. ^{[26
]}

Fan, R. R. ^{[1
]}

Fang, J. ^{[1
]}

Fang, S. S. ^{[1
]}

Feldbauer, F. ^{[2
]}

Feng, C. Q. ^{[36
]}

Fu, C. D. ^{[1
]}

Fu, J. L. ^{[21
]}

Gao, Y. ^{[32
]}

Geng, C. ^{[36
]}

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

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

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

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

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

[12] Huazhong Normal Univ, Wuhan 430079, Peoples R China

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

[14] Indiana Univ, Bloomington, IN 47405 USA

[15] Joint Inst Nucl Res, Dubna 141980, Russia

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

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

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

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

[20] Nanjing Normal Univ, Nanjing 210046, Peoples R China

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

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

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

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

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

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

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

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

[29] Chinese Univ Hong Kong, Shatin, Hong Kong, Peoples R China

[30] Univ Hong Kong, Pokfulam, Hong Kong, Peoples R China

[31] Univ Tokyo, Tokyo 1130033, Japan

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

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

[34] Univ Hawaii, Honolulu, HI 96822 USA

[35] Univ Minnesota, Minneapolis, MN 55455 USA

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

[37] Univ Punjab, Lahore 54590, Pakistan

[38] Univ Turin, Turin, Italy

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

[40] Univ Washington, Seattle, WA 98195 USA

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

[42] Zhejiang Univ, Hangzhou 310027, Zhejiang, Peoples R China

[43] Zhengzhou Univ, Zhengzhou 450001, Peoples R China

来源：

PHYSICAL REVIEW D | 2011年 / 83卷 / 01期

基金：

新加坡国家研究基金会; 中国国家自然科学基金; 俄罗斯基础研究基金会;

关键词：

ANNIHILATION; STATES; OCTET;

D O I：

10.1103/PhysRevD.83.012006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a study of the P-wave spin-triplet charmonium chi(cJ) decays (J = 0, 1, 2) into pi(0)pi(0)pi(0)pi(0). The analysis is based on 106 x 10(6) psi' decays recorded with the BESIII detector at the BEPCII electron positron collider. The decay into the pi(0)pi(0)pi(0)pi(0) hadronic final state is observed for the first time. We measure the branching fractions B(chi(c0) -> pi(0)pi(0)pi(0)pi(0)) = (3.34 +/- 0.06 +/- 0.44) X 10(-3), B(chi(c1) -> pi(0)pi(0)pi(0)pi(0)) = (0.57 +/- 0.03 +/- 0.08) X 10(-3), and B(chi(c2) -> pi(0)pi(0)pi(0)pi(0)) = (1.21 +/- 0.05 +/- 0.16) X 10(-3), where the uncertainties are statistical and systematical, respectively.

引用

页数：7

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