Properties of the systems created in p-p and p-Pb collisions in ALICE at LHC

It has been established that ultra-relativistic heavy-ion collisions produce a hot and dense QCD system which behaves like a perfect fluid. Albeit, the system is not the theoretical predicted Quark Gluon Plasma, its study results important to understand the cosmic evolution of our Universe. As well as specific aspects of QCD in the non-perturbative sector. For three decades, minimum-bias proton-proton collisions were used as the baseline in order to extract the novel properties of the hot and dense systems. Surprisingly, the analysis of pp collisions as a function of the event multiplicity revealed new phenomena: collective-like behavior. For the heavy-ion community it is crucial to understand the origin of the similarities among the systems created in pp, p-A and A-A collisions. In this thesis a study of small systems (pp and p-A collisions) as a function of the jet content and multiplicity was done, multi-partonic interactions and color reconnection have received special attention because they can produce radial flow-like patterns. Also, including color ropes, the model can also increase the baryon and strangeness production. The study was done in two parts, one consists on the study of observables sensitive to the new phenomena, but using two different MC event generators: Pythia 8 and Epos 3. The former is based on multi-partonic interactions and color reconnection, while the latter includes the hydrodynamical evolution of the system. Using these ideas we analyzed the ALICE data for pp collisions at 13 TeV using an alternative approach based on event shapes, specifically, transverse spherocity.