Publications [#321015] of Alfred T. Goshaw

Papers Published
  1. Aaboud, M; Aad, G; Abbott, B; Abdallah, J; Abdinov, O; Abeloos, B; Aben, R; AbouZeid, O; Abraham, N; Abramowicz, H; Abreu, H; Abreu, R; Abulaiti, Y; Acharya, B; Adachi, S; Adamczyk, L; Adams, D; Adelman, J; Adomeit, S; Adye, T; Affolder, A; Agatonovic-Jovin, T; Agricola, J; Aguilar-Saavedra, J; Ahlen, S; Ahmadov, F; Aielli, G; Akerstedt, H; Åkesson, T; Akimov, A; Alberghi, G; Albert, J; Albrand, S; Alconada Verzini, M; Aleksa, M; Aleksandrov, I; Alexa, C; Alexander, G; Alexopoulos, T et al., Measurement of the total cross section from elastic scattering in pp collisions at with the ATLAS detector, Physics Letters B, vol. 761 (October, 2016), pp. 158-178 [doi] .

    © 2016 The AuthorA 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, 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.