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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 - Článek v odborném periodiku
    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. E-ISSN 1434-6052
    Grant CEP: GA MŠk(CZ) LTT17018
    Výzkumná infrastruktura: CERN-CZ - 90058
    Institucionální podpora: RVO:68378271
    Klíčová slova: elastic proton proton scattering * LHC * Coulomb-hadronic interference
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Obor OECD: Particles and field physics
    Impakt faktor: 4.389, rok: 2019
    Způsob publikování: Open access

    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.

    Trvalý link: http://hdl.handle.net/11104/0318295

     
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