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Measurement of the total cross section from elastic scattering in pp collisions at s=8 TeV with the ATLAS detector

Aaboud, M.
•
Aad, G.
•
Abbott, B.
altro
GIORDANI, Mario
2016
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
A measurement of the total pp cross section at the LHC at s=8 TeV is presented. An integrated luminosity of 500 μb−1was accumulated in a special run with high-β⋆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 GeV2to 0.1 GeV2to extrapolate t→0, the total cross section, σtot(pp→X), is measured via the optical theorem to beσtot(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.
DOI
10.1016/j.physletb.2016.08.020
WOS
WOS:000384469900024
Archivio
http://hdl.handle.net/11390/1109750
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85041793094
Diritti
metadata only access
Scopus© citazioni
86
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
91
Data di acquisizione
Mar 27, 2024
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