The landscape of particle accelerator physics in South America has been the subject of a systematic review that analyses the regional contribution and collaborative networks in this field. The research focuses on the role South American countries play in the development and research of particle accelerators, highlighting both the achievements and challenges facing the region. The review highlights the importance of international collaboration in particle accelerator physics, evidencing how South American scientists and institutions have established connections and alliances with research centers around the world. These collaborations have not only enabled access to advanced technologies and knowledge but have also contributed to the exchange of ideas and the development of scientific capacities in the region. This systematic review comprehensively examines the state of particle accelerat...