Measurement of the total cross section from elastic scattering in pp collisions at root s=7 TeV with the ATLAS detector
ATLAS collaboration
刊名NUCLEAR PHYSICS B
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
学科分类Physics
DOI10.1016/j.nuclphysb.2014.10.019
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.
类目[WOS]Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000347016900021
引用统计
被引频次:62[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213838
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
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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.
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