Measurement of the branching fractions for j/psi ->gamma pi(0), gamma eta and gamma eta(')
文献类型：期刊论文
| 作者 | Ablikim, M; Bai, JZ; Ban, Y; Bian, JG; Cai, X; Chen, HF; Chen, HS; Chen, HX; Chen, JC; Chen, J |
| 刊名 | Physical review d
 |
| 出版日期 | 2006-03-01 |
| 卷号 | 73期号:5页码:10 |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/physrevd.73.052008 |
| 通讯作者 | Ablikim, m() |
| 英文摘要 | The decay modes j/psi ->gamma pi(0), gamma eta and gamma eta(') are analyzed using a data sample of 58x10(6) j/psi decays collected with the besii detector at the bepc. the branching fractions are determined to be: br(j/psi ->gamma pi(0))=(3.13(-0.47)(+0.65))x10(-5), br(j/psi ->gamma eta)=(11.23 +/- 0.89)x10(-4), and br(j/psi ->gamma eta('))=(5.55 +/- 0.44)x10(-3), where the errors are combined statistical and systematic errors. the ratio of partial widths gamma(j/psi ->gamma eta('))/gamma(j/psi ->gamma eta) is measured to be 4.94 +/- 0.40, and the singlet-octet pseudoscalar mixing angle of eta-eta(') system is determined. |
| WOS关键词 | RADIATIVE DECAYS ; J-PSI ; DETECTOR ; PARTICLE ; PHYSICS ; PHOTON ; J/PSI ; QCD |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000236465800018 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175836 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Ablikim, M |
| 作者单位 | 1.Inst High Energy Phys, Beijing 100049, Peoples R China 2.China Ctr Adv Sci & Technol, Beijing 100080, Peoples R China 3.Guangxi Normal Univ, Guilin 541001, Peoples R China 4.Guangxi Univ, Nanning 530004, Peoples R China 5.Henan Normal Univ, Xinxiang 453002, Peoples R China 6.Huazhong Normal Univ, Wuhan 430079, Peoples R China 7.Hunan Univ, Changsha 410082, Peoples R China 8.Jinan Univ, Jinan 250022, Peoples R China 9.Liaoning Univ, Shenyang 110036, Peoples R China 10.Nanjing Normal Univ, Nanjing 210097, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ablikim, M,Bai, JZ,Ban, Y,et al. Measurement of the branching fractions for j/psi ->gamma pi(0), gamma eta and gamma eta(')[J]. Physical review d,2006,73(5):10. |
| APA | Ablikim, M.,Bai, JZ.,Ban, Y.,Bian, JG.,Cai, X.,...&Zou, BS.(2006).Measurement of the branching fractions for j/psi ->gamma pi(0), gamma eta and gamma eta(').Physical review d,73(5),10. |
| MLA | Ablikim, M,et al."Measurement of the branching fractions for j/psi ->gamma pi(0), gamma eta and gamma eta(')".Physical review d 73.5(2006):10. |
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来源：高能物理研究所
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