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  • Letter
  • Open Access

Proton inelastic cross section at ultrahigh energies

Atri Bhattacharya1,*, Jean-René Cudell1,†, Rami Oueslati1,‡, and Arno Vanthieghem2,§

  • 1Space sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Bât. B5a, 4000 Liège, Belgium
  • 2High Energy Density Science Division (HEDS), SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA

  • *a.bhattacharya@uliege.be
  • †jr.cudell@uliege.be
  • ‡rami.oueslati@uliege.be
  • §vanthieg@slac.stanford.edu
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Phys. Rev. D 103, L051502 – Published 16 March, 2021

DOI: https://doi.org/10.1103/PhysRevD.103.L051502

Abstract

We study the consequences of high-energy collider data on the best fits to total, elastic, and inelastic cross sections for pp and pp¯ scattering using two very distinct unitarization schemes: the eikonal and the U-matrix. Despite their analytic differences, we find that the two schemes lead to almost identical predictions up to EeV energies, with differences only becoming significant at GUT-scale and higher energies.

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Phys. Rev. D 103, L051502– Published 16 March, 2021
  • Received 16 December 2020
  • Accepted 9 February 2021
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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