Theoretical priors in scalar-tensor cosmologies: Shift-symmetric Horndeski models
Authors: Traykova, Dina; Bellini, Emilio; Ferreira, Pedro G.; Garcia-Garcia, Carlos; Noller, Johannes; Zumalacarregui, Miguel Journal: PHYSICAL REVIEW D Publication date: 2021/10/01 DOI: 10.1103/PhysRevD.104.083502 Abstract: Attempts at constraining theories of late time accelerated expansion often assume broad priors for the parameters in their phenomenological description. Focusing on shift-symmetric scalar-tensor theories with standard gravitational wave speed, we [...]