Fotoproducão de bósons de calibre em colisões

• Ano de defesa: 2020
• Autor(a) principal: Coelho, Rafael Otto
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Pelotas; Programa de Pós-Graduação em Física; UFPel; Brasil
• Palavras-chave em Português: Bósons de calibre; Fotoprodução; Produção exclusiva; LHC; FCC; Gauge bosons; Photoproduction; Exclusive production; CIENCIAS EXATAS E DA TERRA; FISICA
• Link de acesso: http://guaiaca.ufpel.edu.br/xmlui/handle/prefix/12974

The production of gauge bosons in photon- and Pomeron-induced processes present in hadronic collisions at the Large Hadron Collider (LHC) and the Future Circular Collider (FCC) is investigated. In this thesis, we will present results for the photoproduction of massive gauge bosons ($Z$ and $W$) in proton--proton, proton--nucleus, and nucleus--nucleus collisions, that indicate that the massive gauge bosons photoproduction rate is high, which will allow to observe, for the first time, this process, predicted on the Standard Model. Besides this process, we will present results for the production of diphotons in ultraperipheral heavy ion collisions, considering different production channels. For this final state, we demonstrate that the production will be dominated by Light-by-Light scattering. Finally, we will demonstrate that the study of diphoton production in ultraperipheral collisions can be used to investigate the existence of axionlike particles (ALP). Specially, our results demonstrate that ALPs with mass lower that $5\,GeV$ can be investigated using a forward detector, such as the LHCb. The results presented in this thesis indicate that these final states could be investigated at the LHC and the FCC and these processes can be used to expand our comprehension of the Standard Model and to search for Beyond Standard Model Physics.