Mullier, Geoffrey; Haug, Sigve; Weber, Michael; Meloni, Federico; Cervelli, Alberto; Beck, Hans Peter; Stucci, Stefania; Ereditato, Antonio (2016). Measurement of the total cross section from elastic scattering in pp collisions at √s=8 TeV with the ATLAS detector. Physics letters. B, 761, pp. 158-178. Elsevier 10.1016/j.physletb.2016.08.020
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A measurement of the total pp cross section at the LHC at √s=8 TeV is presented. An integrated luminosity of 500 μb⁻¹ was 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 GeV² to 0.1 GeV² to extrapolate t→0 , the total cross section, σ tot (pp→X) , is measured via the optical theorem to be:
σ 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.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Haug, Sigve, Weber, Michele, Beck, Hans Peter |
Subjects: |
500 Science > 530 Physics 500 Science > 510 Mathematics |
ISSN: |
0370-2693 |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
Annette Krebs-Wegenast |
Date Deposited: |
20 Jul 2017 09:48 |
Last Modified: |
05 Dec 2022 15:05 |
Publisher DOI: |
10.1016/j.physletb.2016.08.020 |
Additional Information: |
Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt. |
BORIS DOI: |
10.7892/boris.99922 |
URI: |
https://boris.unibe.ch/id/eprint/99922 |
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