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Measurement of the total cross section and ρ-parameter from elastic scattering in pp collisions at √s = 13 TeV with the ATLAS detector

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In a special run of the LHC with $$\beta ^{\star } = 2.5$$ km, proton-proton elastic-scattering events were recorded at $$\sqrt{s} = 13$$ TeV with an integrated luminosity of $$340~\upmu {\text {b}}^{-1}$$using the ALFA subdetector of ATLAS in 2016. The elastic cross section was measured differentia...

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Main Authors: Aad, Georges (Author) , Baltes, Lisa Marie (Author) , Bartels, Falk (Author) , Castillo, Florencia Luciana (Author) , Czurylo, Marta (Author) , Dittmeier, Sebastian (Author) , Dunford, Monica (Author) , Franchino, Silvia (Author) , Klassen, Martin (Author) , Mkrtchyan, Tigran (Author) , Ott, Philipp (Author) , Rassloff, Damir Fabrice (Author) , Rodriguez Bosca, Sergi (Author) , Sauer, Christof (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Sothilingam, Varsiha (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Vigani, Luigi (Author) , Weber, Sebastian (Author) , Wessels, Martin (Author) , Zinßer, Joachim (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 26 May 2023
In: The European physical journal. C, Particles and fields
Year: 2023, Volume: 83, Issue: 5, Pages: 1-49
ISSN:1434-6052
DOI:10.1140/epjc/s10052-023-11436-8
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1140/epjc/s10052-023-11436-8
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Author Notes:ATLAS Collaboration*
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Summary:In a special run of the LHC with $$\beta ^{\star } = 2.5$$ km, proton-proton elastic-scattering events were recorded at $$\sqrt{s} = 13$$ TeV with an integrated luminosity of $$340~\upmu {\text {b}}^{-1}$$using the ALFA subdetector of ATLAS in 2016. The elastic cross section was measured differentially in the Mandelstam t variable in the range from $$-t = 2.5 \cdot 10^{-4}$$ GeV$$^{2}$$to $$-t = 0.46$$ GeV$$^{2}$$using 6.9 million elastic-scattering candidates. This paper presents measurements of the total cross section $$\sigma _{\text {tot}}$$, parameters of the nuclear slope, and the $$\rho $$-parameter defined as the ratio of the real part to the imaginary part of the elastic-scattering amplitude in the limit
Item Description:Veröffentlicht: 26. Mai 2023
*ATLAS Collaboration: G. Aad, L.M. Baltes, F. Bartels, F.L. Castillo, M.M. Czurylo, M. Dunford, S. Franchino, M. Klassen, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, S. Rodriguez Bosca, C. Sauer, A. Schoening, H-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S.M. Weber, M. Wessels, J. Zinsser [und sehr viele weitere Personen]
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Physical Description:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-023-11436-8

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