4D de Sitter from 6D gauged supergravity with Green-Schwarz counterterm

Lambda CDM is the standard model describing the evolution of universe. However, it is well-known that it is extremely difficult to obtain de Sitter vacuum without invoking non-perturbative and higher derivative corrections. In my talk, I will propose a new scenario based on consistent 6D gauged supergravity with gauged R symmetry. I will show you that classical de Sitter vacuum are ample within this class of models.