URL: https://physikseminar.desy.de/zeuthen/past_colloquia/colloquia_in_2015/may_20_2015/@@siteview
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Forum on Double Parton Scattering
Vanya Belyaev (ITEP Moscow), Markus Diehl (DESY), Paolo Gunnellini (DESY)
Seminar room 3, 15:00
When the parton densities probed in a proton-proton collision become very large, the probability to observe more than one partonic cattering becomes observable. Such double-parton scattering (DPS) is not described in the standard calculations and needs a special treatment. DPS can be investigated by measuring using different observables. Simulations including contributions of DPS can describe the measurements, while a simulation without DPS fail. Measurements at the LHC clearly show the need of double-parton scattering at large transverse momenta in hadronic collisions.
