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Measurement of the total cross section from elastic scattering in pp collisions at root s=8 TeV with the ATLAS detector
ATLAS Collaboration
2016
发表期刊PHYSICS LETTERS B
卷号761页码:158-178
摘要A measurement of the total ppcross section at the LHC at root s = 8TeV is presented. An integrated luminosity of 500 mu b(-1) was accumulated in a special run with high-beta* beam optics 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 -t range from 0.014 GeV2 to 0.1 GeV2 to extrapolate t -> 0, the total cross section, sigma(tot)( pp -> X), is measured via the optical theorem to be sigma(tot)(pp -> X) = 96.07 +/- 0.18 (stat.) +/- 0.85 (exp.) +/- 0.31 (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 t -> 0. In addition, the slope of the exponential function describing the elastic cross section at small t is determined to be B = 19.74 +/- 0.05 (stat.) +/- 0.23 (syst.) GeV-2. (C) 2016 The Author. Published by Elsevier B.V.
文章类型Article
DOI10.1016/j.physletb.2016.08.020
关键词[WOS]HIGH-ENERGY ; LHC ENERGY ; INTERFERENCE ; MODEL
语种英语
WOS记录号WOS:000384469900024
引用统计
被引频次:25[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/311005/260920
专题实验物理中心
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=8 TeV with the ATLAS detector[J]. PHYSICS LETTERS B,2016,761:158-178.
APA ATLAS Collaboration.(2016).Measurement of the total cross section from elastic scattering in pp collisions at root s=8 TeV with the ATLAS detector.PHYSICS LETTERS B,761,158-178.
MLA ATLAS Collaboration."Measurement of the total cross section from elastic scattering in pp collisions at root s=8 TeV with the ATLAS detector".PHYSICS LETTERS B 761(2016):158-178.
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