Measurement of the eta and eta(') transition form factors at q(2)=112 GeV2
文献类型：期刊论文
| 作者 | BaBar Collaboration |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2006 |
| 卷号 | 74期号:1 |
| 关键词 | HARD-PHOTON-EMISSION EXCLUSIVE PROCESSES BHABHA SCATTERING ENERGIES DETECTOR PHYSICS MESONS |
| 通讯作者 | Aubert, B (reprint author), Phys Particules Lab, F-74941 Annecy Le Vieux, France. |
| 英文摘要 | We report a study of the processes e(+)e(-)->eta gamma and e(+)e(-)->eta(')gamma at a center-of-mass energy of 10.58 GeV, using a 232 fb(-1) data sample collected with the BABAR detector at the PEP-II collider at SLAC. We observe 20(-5)(+6)eta gamma and 50(-7)(+8)eta(')gamma events over small backgrounds, and measure the cross sections sigma(e(+)e(-)->eta gamma)=4.5(-1.1)(+1.2)+/- 0.3 fb and sigma(e(+)e(-)->eta(')gamma)=5.4 +/- 0.8 +/- 0.3 fb. The corresponding transition form factors at q(2)=112 GeV2 are q(2)vertical bar F-eta(q(2))vertical bar=0.229 +/- 0.030 +/- 0.008 GeV, and q(2)vertical bar F-eta(')(q(2))vertical bar=0.251 +/- 0.019 +/- 0.008 GeV, respectively. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000239511800012 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212698]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | BaBar Collaboration. Measurement of the eta and eta(') transition form factors at q(2)=112 GeV2[J]. PHYSICAL REVIEW D,2006,74(1). |
| APA | BaBar Collaboration.(2006).Measurement of the eta and eta(') transition form factors at q(2)=112 GeV2.PHYSICAL REVIEW D,74(1). |
| MLA | BaBar Collaboration."Measurement of the eta and eta(') transition form factors at q(2)=112 GeV2".PHYSICAL REVIEW D 74.1(2006). |
入库方式： OAI收割
来源：高能物理研究所
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