First measurement of elastic, inelastic and total cross-section at 𝑠√=13 TeV by TOTEM and overview of cross-section data at LHC energies
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Issue Date
2019-02-01Author
Antchev, G.
Royon, Christophe
Publisher
SpringerOpen
Type
Article
Article Version
Scholarly/refereed, publisher version
Rights
© CERN for the benefit of the TOTEM collaboration 2019.
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The TOTEM collaboration has measured the proton–proton total cross section at 𝑠√=13 TeV with a luminosity-independent method. Using dedicated 𝛽∗=90 m beam optics, the Roman Pots were inserted very close to the beam. The inelastic scattering rate has been measured by the T1 and T2 telescopes during the same LHC fill. After applying the optical theorem the total proton–proton cross section is 𝜎tot=(110.6 ± 3.4) mb, well in agreement with the extrapolation from lower energies. This method also allows one to derive the luminosity-independent elastic and inelastic cross sections: 𝜎el=(31.0 ± 1.7) mb and 𝜎inel=(79.5 ± 1.8) mb.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
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Citation
Antchev, G., Aspell, P., Atanassov, I. et al. First measurement of elastic, inelastic and total cross-section at 𝑠√=13 TeV by TOTEM and overview of cross-section data at LHC energies. Eur. Phys. J. C 79, 103 (2019). https://doi.org/10.1140/epjc/s10052-019-6567-0
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