Jet Substructure as a Tool to Study Double Parton Scatterings in V + Jets Processes at the LHC

Double parton scatterings (DPS) provide vital information on the parton–parton correlations and parton distributions in a hadron. It also constitute as a background to new physics searches. Measurement of DPS in Vector Boson (V) + jets processes is important because of clean experimental signature and large production cross-section. The available DPS measurements, with V + jets, are dominated by large contamination from V (W or Z) + jets processes produced with single parton scatterings (SPS). In this document, the importance of jet sub-structure in controlling SPS backgrounds for Z + jets DPS processes is discussed.