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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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    0540654 - FZÚ 2021 RIV DE eng J - Journal Article
    Antchev, G. - Aspell, P. - Atanassov, I. - Kašpar, Jan - Kundrát, Vojtěch - Lokajíček, Miloš V. - Procházka, Jiří
    First measurement of elastic, inelastic and total cross-section at √s = 13 TeV by TOTEM and overview of cross-section data at LHC energies.
    European Physical Journal C. Roč. 79, č. 2 (2019), s. 1-10, č. článku 103. ISSN 1434-6044
    R&D Projects: GA MŠk(CZ) LTT17018; GA MŠk LM2015058
    Institutional support: RVO:68378271
    Keywords : elastic proton proton scattering * LHC * Coulomb-hadronic interference
    Subject RIV: BF - Elementary Particles and High Energy Physics
    OBOR OECD: Particles and field physics
    Impact factor: 4.389, year: 2019
    http://hdl.handle.net/11104/0318295

    The TOTEM collaboration has measured the proton–proton total cross section at √s = 13 TeV with a luminosity-independent method. Using dedicated β∗ = 90m 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.

    Permanent Link: http://hdl.handle.net/11104/0318295
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