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    TH Meeting on Particle Physics Phenomenology

    Soft gluon resummations in DIS

    by Mrinal DASGUPTA (INFN, Milano)

    → Europe/Zurich
    TH Auditorium (CERN)

    TH Auditorium

    CERN
    Description
    Event shape variables are commonly used in Deep Inelastic Scattering to compare the predictions of theory to data. This procedure yields valuable information about both the strong coupling parameter and non-perturbative power behaved terms. However perturbative predictions for shape-variable distributions suffer from large logarithms at all orders due to restrictions on soft gluon phase space. Here we discuss procedures to resume the dangerous logarithms and the ensuing phenomenological applications at HERA.