Produção Associada de Partículas em Colisões Ultraperiféricas de Íons Pesados

Abstract

The study of ultraperipheral heavy ion collisions (UPHICs), characterized by an impact parameter greater than the sum of the radii of the incident ions, is currently considered an alternative to broaden our understanding of the Standard Model and investigate possible scenarios for New Physics. In this thesis, we study the associated production of particles in UPHICs, motivated by the fact that when two heavy ions collide at high energies, the probability of two exclusive interactions occurring simultaneously is not negligible due to the large number of photons emitted by the incident ions. We consider that different final states are produced by interactions mediated by color singlet particles (photon and Pomeron). In particular, we investigate the associated production of two vector mesons, a vector meson and a scalar meson, or a true muonium, or a dilepton. Furthermore, we consider the associated production of vector mesons with the production of a dilepton with capture, in which the ion's charge is altered, and it is removed from the beam. For all these cases, we present predictions for the energies of the Large Hadron Collider (LHC) and the Future Circular Collider (FCC).