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A new approach to modelling elastic and inelastic photon-initiated production at the LHC: SuperChic 4

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    0538784 - FZÚ 2021 RIV DE eng J - Journal Article
    Harland-Lang, L. A. - Taševský, Marek - Khoze, V.A. - Ryskin, M.G.
    A new approach to modelling elastic and inelastic photon-initiated production at the LHC: SuperChic 4.
    European Physical Journal C. Roč. 80, č. 10 (2020), s. 1-14, č. článku 925. ISSN 1434-6044. E-ISSN 1434-6052
    R&D Projects: GA MŠk(CZ) LTT17018
    Research Infrastructure: CERN-CZ II - 90104
    Institutional support: RVO:68378271
    Keywords : CERN LHC Coll * hadronization * structure function
    Subject RIV: BF - Elementary Particles and High Energy Physics
    OECD category: Particles and field physics
    Impact factor: 4.590, year: 2020
    Method of publishing: Open access

    We present the results of the new SuperChic 4 Monte Carlo implementation of photon-initiated production in proton–proton collisions, considering as a first example the case of lepton pair production. This is based on the structure function calculation of the underlying process, and focusses on a complete account of the various contributing channels, including the case where a rapidity gap veto is imposed. We provide a careful treatment of the contributions where either (single dissociation), both (double dissociation) or neither (elastic) proton interacts inelastically and dissociates, and interface our results to Pythia for showering and hadronization. The particle decay distribution from dissociation system, as well the survival probability for no additional proton–proton interactions, are both fully accounted for these are essential for comparing to data where a rapidity gap veto is applied.
    Permanent Link: http://hdl.handle.net/11104/0316514

     
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