Measurement of the total cross section from elastic scattering in pp collisions at root s=7 TeV with the ATLAS detector
文献类型：期刊论文
| 作者 | ATLAS collaboration |
| 刊名 | NUCLEAR PHYSICS B
 |
| 出版日期 | 2014 |
| 卷号 | 889页码:486-548 |
| 关键词 | INTERSECTING STORAGE-RINGS ANGLE ANTIPROTON-PROTON HIGH-ENERGY LHC ENERGY COLLIDER AMPLITUDES MODEL INTERFERENCE DIFFRACTION PBARP |
| 通讯作者 | Aad, G (reprint author), Aix Marseille Univ, CPPM, Marseille, France. |
| 英文摘要 | A measurement of the total pp cross section at the LHC at root s = 7 TeV is presented. In a special run with high-beta* beam optics, an integrated luminosity of 80 mu b(-1) was accumulated in order to measure the differential elastic cross section as a function of the Mandelstam momentum transfer variable t. The measurement is performed with the ALFA sub-detector of ATLAS. Using a fit to the differential elastic cross section in the vertical bar t vertical bar range from 0.01 GeV2 to 0.1 GeV2 to extrapolate to vertical bar t vertical bar --> 0, the total cross section, sigma(tot)(pp --> X), is measured via the optical theorem to be: sigma(tot)(pp --> X) = 95.35 +/- 0.38 (stat.) +/- 1.25 (exp.) +/- 0.37 (extr.) mb, where the first error is statistical, the second accounts for all experimental systematic uncertainties and the last is related to uncertainties in the extrapolation to vertical bar t vertical bar --> 0. In addition, the slope of the elastic cross section at small vertical bar t vertical bar is determined to be B = 19.73 +/- 0.14 (stat.) +/- 0.26 (syst.) GeV-2. (C) 2014 The Authors. Published by Elsevier B.V. |
| 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:000347016900021 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213838]  |
| 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 | ATLAS collaboration. Measurement of the total cross section from elastic scattering in pp collisions at root s=7 TeV with the ATLAS detector[J]. NUCLEAR PHYSICS B,2014,889:486-548. |
| APA | ATLAS collaboration.(2014).Measurement of the total cross section from elastic scattering in pp collisions at root s=7 TeV with the ATLAS detector.NUCLEAR PHYSICS B,889,486-548. |
| MLA | ATLAS collaboration."Measurement of the total cross section from elastic scattering in pp collisions at root s=7 TeV with the ATLAS detector".NUCLEAR PHYSICS B 889(2014):486-548. |
入库方式： OAI收割
来源：高能物理研究所
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