Measurement of the total cross section and $\rho$-parameter from elastic scattering in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

The ATLAS collaboration
Eur.Phys.J.C 83 (2023) 441, 2023.

Abstract (data abstract)
CERN-LHC ATLAS. Measurement of the differential elastic cross section in the Mandelstam t-variable in proton-proton collisions at a centre-of-mass energy of 13 TeV collected in a special high beta* run in 2016. From a fit to the differential elastic cross section the total pp cross section, the rho-parameter and parameters B, C and D describing the nuclear slope are determined. In addition, the total integrated elastic cross section in the fiducial volume, the nuclear part of the total elastic cross section in the full phase space, the total inelastic cross section and the ratio of the elastic to total cross section are reported. The fiducial volume ist defined by 2.5E-4 GeV2 < t < 0.42 GeV2.

  • Table 1

    Data from Table 7 of preprint

    10.17182/hepdata.128017.v2/t1

    The measured total cross section. The systematic uncertainty includes experimental and theoretical uncerainties.

  • Table 2

    Data from Table 7 of preprint

    10.17182/hepdata.128017.v2/t2

    The rho-parameter, i.e. the ratio of the real to imaginary part of the elastic scattering amplitude extrapolated to t=0. The...

  • Table 3

    Data from Table 7 of preprint

    10.17182/hepdata.128017.v2/t3

    The nuclear slope parameter B from a fit of the form exp(-Bt-Ct^2-Dt^3). The systematic uncertainty includes experimental and theoretical uncerainties.

  • Table 4

    Data from Table 7 of preprint

    10.17182/hepdata.128017.v2/t4

    The nuclear slope parameter C from a fit of the form exp(-Bt-Ct^2-Dt^3). The systematic uncertainty includes experimental and theoretical uncerainties.

  • Table 5

    Data from Table 7 of preprint

    10.17182/hepdata.128017.v2/t5

    The nuclear slope parameter D from a fit of the form exp(-Bt-Ct^2-Dt^3). The systematic uncertainty includes experimental and theoretical uncerainties.

  • Table 6

    Data from page 38 of preprint

    10.17182/hepdata.128017.v2/t6

    The total elastic cross section measured inside the fiducial volume. The systematic uncertainty includes experimental uncertainties.

  • Table 7

    Data from page 39 of preprint

    10.17182/hepdata.128017.v2/t7

    The total elastic cross section obtained from the fitted parameters, extrapolated to full phase space using only the nuclear amplitude.

  • Table 8

    Data from page 39 of preprint

    10.17182/hepdata.128017.v2/t8

    The total inelastic cross section.

  • Table 9

    Data from page 39 of preprint

    10.17182/hepdata.128017.v2/t9

    The ratio of elastic to total cross section.

  • Table 10

    Data from Tabel 12 and 13 and Figures 17, 18 and 19 of the preprint

    10.17182/hepdata.128017.v2/t10

    The differential elastic cross section as function of t with statistical and systematic uncertainties. The systematic uncertainties are given as...

  • Table 11

    Covariance matrix for the data presented in Table 10

    10.17182/hepdata.128017.v2/t11

    Statistical covariance matrix for the measurement of the differential elastic cross section as function of t.

Version 2 modifications: Minor update in Table 10 where the differential elastic cross section and the relative signed systematic shifts are given. In the latter we found spurious "%"-characters after the shift numbers, which should not be there.

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