Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/102041
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Type: | Journal article |
Title: | Measurement of the total cross section from elastic scattering in pp collisions at √s = 7TeV with the ATLAS detector |
Other Titles: | Measurement of the total cross section from elastic scattering in pp collisions at root s = 7TeV with the ATLAS detector |
Author: | Aad, G. ATLAS Collaboration, |
Citation: | Nuclear Physics B, 2014; 889:486-548 |
Publisher: | Elsevier |
Issue Date: | 2014 |
ISSN: | 0550-3213 1873-1562 |
Statement of Responsibility: | G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... et al. (ATLAS Collaboration) |
Abstract: | A measurement of the total pp cross section at the LHC at √s = 7 TeV is presented. In a special run with high-β* beam optics, an integrated luminosity of 80 μb⁻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 |t| range from 0.01 GeV² to 0.1 GeV² to extrapolate to |t|→0, the total cross section, σtot(pp → X), is measured via the optical theorem to be: σtot(pp → X) =95.35 ± 0.38 (stat.) ± 1.25 (exp.) ± 0.37 (extr.) mb, Turn MathJax on 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 |t| → 0. In addition, the slope of the elastic cross section at small |t| is determined to be B = 19.73 ± 0.14 (stat.) ± 0.26 (syst.) GeV⁻². |
Rights: | © 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license |
DOI: | 10.1016/j.nuclphysb.2014.10.019 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1016/j.nuclphysb.2014.10.019 |
Appears in Collections: | Aurora harvest 3 Physics publications |
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hdl_102041.pdf | Published version | 2.16 MB | Adobe PDF | View/Open |
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