Abstract
Multiple-parton interactions (MPI) play a vital role in hadron-hadron collisions. This paper presents a study of the MPIs with simulated $Z+\mathrm{jets}$ events in proton-proton collisions at a center-of-mass energy of 13 TeV. The events are simulated with powheg, followed by hadronization and parton showering using pythia8. The events with dimuon invariant mass in the range of $60--120\text{ }\text{ }\mathrm{GeV}/{c}^{2}$ are selected for the analysis. The charged particle jets having a minimum transverse momentum of $5\text{ }\text{ }\mathrm{GeV}/c$ and an absolute pseudorapidity less than 2 are used to construct the observables for measurements of the MPIs. The proposed observables and phase-space region presented in this paper are found to have enhanced sensitivity to MPIs. The increased sensitivity to MPIs will lead to precise constraints on the parameters of the MPI models.
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