Study of Z‐boson production in di‐lepton channel on pPb collisions at

Abstract

There is a growing interest in the analysis of the most recent results of the ALICE, ATLAS, and CMS detectors in asymmetric systems (pPb) due to the possibility of establishing some theoretical prescriptions for PbPb collisions and gaining insight this way into the behavior of the medium itself. The analysis of data in both cases can allow the understanding of the parton distribution functions (PDFs) under different regimes. For the study of the initial state in proton-led collisions at 5.02 TeV, in this contribution, the Drell-Yan process was chosen once the inclusive lepton production represents a clean process, independent of the color degree of freedoms. For this study, an extension of the Glauber model was considered for the cross section. Under this approach, we can examine the initial vertex of the hard process described by the proton-proton (pp) signal cross section pp and apply the usual standard calculations through the factorization theorem. We focused on the analysis of the p T (transverse momentum) distribution and compared the role of different factorization schema in the behavior of the distribution at low p T .