Observation of double c(c)over-bar production in e(+)e(-) annihilation at root s approximate to 10.6 GeV
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2002 |
| 卷号 | 89期号:14 |
| 关键词 | OCTET QUARKONIA PRODUCTION J/PSI PRODUCTION CHROMODYNAMICS TEVATRON PHYSICS |
| 通讯作者 | Abe, K (reprint author), High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan. |
| 英文摘要 | We report the observation of prompt J/psi via double c (c) over bar production from the e(+)e(-) continuum. In this process one c (c) over bar pair fragments into a J/psi meson while the remaining pair either produces a charmonium state or fragments into open charm. Both cases have been experimentally observed. We find cross sections of sigma[e(+)e(-)-->J/psieta(c)(gamma)]xB(eta(c)-->greater than or equal to4 charged)=(0.033(-0.006)(+0.007)+/-0.009) pb and sigma(e(+)e(-)-->J/psiD(*+)X)=(0.53(-0.15)(+0.19)+/-0.14) pb and infer sigma(e(+)e(-)-->J/psic (c) over bar)/sigma(e(+)e(-)-->J/psiX)=0.59(-0.13)(+0.15)+/-0.12. These results are obtained from a 46.2 fb(-1) data sample collected near the Y(4S) resonance, with the Belle detector at the KEKB collider. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000178087200006 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212235]  |
| 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 | Belle Collaboration. Observation of double c(c)over-bar production in e(+)e(-) annihilation at root s approximate to 10.6 GeV[J]. PHYSICAL REVIEW LETTERS,2002,89(14). |
| APA | Belle Collaboration.(2002).Observation of double c(c)over-bar production in e(+)e(-) annihilation at root s approximate to 10.6 GeV.PHYSICAL REVIEW LETTERS,89(14). |
| MLA | Belle Collaboration."Observation of double c(c)over-bar production in e(+)e(-) annihilation at root s approximate to 10.6 GeV".PHYSICAL REVIEW LETTERS 89.14(2002). |
入库方式： OAI收割
来源：高能物理研究所
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