Generalized dilaton gravity in 2d

Generalized dilaton gravity in 2d is the most general consistent deformation of Jackiw-Teitelboim model that maintains local Lorentz invariance. The action generically not power-counting renormalizable, thus going beyond class models typically studied. Nevertheless, all these are exactly soluble. We focus on a subclass scale invariant models. Within this subclass, we identify 3-parameter family describe black holes asymptoting to AdS2 UV and dS2 IR. Since could be interesting for holography, address thermodynamics boundary issues, including charges, asymptotic symmetries holographic renormalization.