Measurement of the inclusive D*(+/-) production in gamma gamma collisions at LEP
文献类型：期刊论文
| 作者 | ALEPH Collaboration |
| 刊名 | EUROPEAN PHYSICAL JOURNAL C
 |
| 出版日期 | 2003 |
| 卷号 | 28期号:4页码:437-449 |
| 关键词 | PHOTON-PHOTON COLLISIONS 2-PHOTON COLLISIONS PARTON DISTRIBUTIONS CHARM PRODUCTION PAIR PRODUCTION LEADING ORDER ENERGIES DETECTOR PHYSICS ALEPH |
| 通讯作者 | Heister, A (reprint author), Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany. |
| 英文摘要 | The inclusive production of D*+/- mesons in two-photon collisions is, measured with the ALEPH detector at e(+)e(-) centre-of-mass energies from 183 GeV to 209 GeV. A total of 360 +/- 27 D*+/- meson events are observed from an integrated luminosity of 699 pb(-1). Contributions from direct and single-resolved processes are separated using the ratio of the transverse momentum p(t)(D*+/-) of the D*+/- to the visible invariant mass W-vis of the event. Differential cross sections of D*+/- production as functions of p(t)(D*+/-) and the pseudorapidity \eta(D*+/-)\ are measured in the range 2 GeV/c < P-t(D*+/-) < 12 GeV/c and \eta(D*+/-)\ < 1.5. They are compared to next-to-leading order (NLO) perturbative QCD calculations. The extrapolation of the integrated visible D*+/- cross section to the total charm cross section, based on the Pythia Monte Carlo program, yields sigma(e(+)e(-) --> e(+)e(-)c (c) over bar)((roots)=197 GeV) = 731 +/- 74(stat) +/- 47(syst) +/- 157(extr) pb. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000184157200001 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212296]  |
| 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 | ALEPH Collaboration. Measurement of the inclusive D*(+/-) production in gamma gamma collisions at LEP[J]. EUROPEAN PHYSICAL JOURNAL C,2003,28(4):437-449. |
| APA | ALEPH Collaboration.(2003).Measurement of the inclusive D*(+/-) production in gamma gamma collisions at LEP.EUROPEAN PHYSICAL JOURNAL C,28(4),437-449. |
| MLA | ALEPH Collaboration."Measurement of the inclusive D*(+/-) production in gamma gamma collisions at LEP".EUROPEAN PHYSICAL JOURNAL C 28.4(2003):437-449. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。