Contatto di riferimento: Barbara Simoni
Partecipanti: Dr. Roberto Bonezzi (University of Mons, Belgio)
Abstract: Conformal higher spin fields, despite being non unitary, provide a remarkable example of a consistent interacting higher spin theory in flat space background, that is local to all orders. The non-linear action is defined as the logarithmically UV divergent part of a one-loop scalar effective action. In this talk we discuss a particle model, that describes the interaction of a scalar particle to the CHS background, and compute its path integral on the circle. We thus provide a worldline representation for the CHS action to all orders, and rederive its quadratic part.