Measurement of eta '(958) formation in two-photon collisions at LEP1
文献类型：期刊论文
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 1998 |
| 卷号 | 418期号:3--4页码:399-410 |
| 关键词 | RELATIVISTIC QUARK-MODEL TRANSITION FORM-FACTOR 2-PHOTON INTERACTIONS RADIATIVE WIDTH L3 EXPERIMENT MESONS ETA' DETECTOR CONSTRUCTION CALORIMETER |
| 通讯作者 | Acciarri, M (reprint author), Ist Nazl Fis Nucl, Sez Milano, Via Celoria 16, I-20133 Milan, Italy. |
| 英文摘要 | The formation of the eta' in the reaction e(+)e(-)-->e(+)e(-)eta'-->e(+)e(-)pi(+)pi(-)gamma has been measured by the L3 detector at a centre-of-mass energy of 91 GeV. The radiative width of the eta' has been found to be Gamma(gamma gamma)=4.17+/-0.10(stat.)+/-0.27(sys.)keV. The Q(2) dependence of the eta' formation cross section has been measured for Q(2) less than or equal to 10 GeV2 and the eta' electromagnetic transition form factor has been determined. The form factor can be parametrised by a pole form with Lambda=0.900+/-0.046(stat.)+/-0.022(sys.)GeV. It is also consistent with recent non-perturbative QCD calculations. (C) 1998 Elsevier Science B.V. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000072938800021 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/211903]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 推荐引用方式 GB/T 7714 | . Measurement of eta '(958) formation in two-photon collisions at LEP1[J]. PHYSICS LETTERS B,1998,418(3--4):399-410. |
| APA | (1998).Measurement of eta '(958) formation in two-photon collisions at LEP1.PHYSICS LETTERS B,418(3--4),399-410. |
| MLA | "Measurement of eta '(958) formation in two-photon collisions at LEP1".PHYSICS LETTERS B 418.3--4(1998):399-410. |
入库方式： OAI收割
来源：高能物理研究所
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