Resummation, Evolution, Factorization 2021

Session

Multiparton interactions

15 Nov 2021, 16:10

Conveners

Multiparton interactions: Multi-parton interactions

• Markus Diehl (T (Phenomenology))

Description

MPI and TMDs

7. A Monte-Carlo Simulation of Double Parton Scattering

Jonathan Gaunt (University of Manchester)

15/11/2021, 16:10

Double parton scattering (DPS) is the process in which one has two separate hard scatterings in an individual proton-proton collision. In recent years much progress has been made towards the proper description of this phenomenon in QCD, including a consistent description of perturbative splittings that yield the parton pair in one or both protons, and a coherent framework for combining both...

18. Sum rules for triple parton distribution functions

Oleh Fedkevych (University of Genoa and INFN - National Institute for Nuclear Physics (sezione di Genova))

15/11/2021, 16:30

Recent measurements of the triple J/psi production performed by the CMS collaboration suggest non-negligible contribution from a triple parton scattering (TPS). The CMS results can be seen as a first experimental observation of a TPS process. Unfortunately, due to the absence of experimental fits, triple parton distribution functions (tPDFs), needed for the theoretical computation of TPS cross...

30. DPDs in colour space: perturbative splitting and positivity

Peter Josef Ploessl (T (Phenomenology))

15/11/2021, 16:50

Double parton scattering (DPS) - the situation where two individual hard interactions happen during a single hadron-hadron collision - is sensitive to all sorts of correlations between two partons inside a hadron, e.g.~spin, colour, or spatial separation. Therefore DPS gives access to information about hadron structure not accessible in single parton scattering (SPS). This information is...