Vittoria Vetra is a fictional character from the novel "Angels & Demons" by Dan Brown. She is a scientist specializing in particle physics and works at the CERN research facility in Switzerland. Vittoria is portrayed as intelligent, resourceful, and determined, playing a crucial role in the story's unfolding events. In the narrative, Vittoria teams up with Robert Langdon, a symbologist, to uncover a conspiracy involving the Illuminati and a stolen antimatter bomb. Her expertise in science and her strong character help drive the plot forward as they race against time to prevent a catastrophic event in Vatican City.