In this paper we study the existence and regularity results of normalized solutions to the following critical growth Choquard equation with mixed diffusion type operators:
− Δ u + ( − Δ ) s u = λ u + g ( u ) + ( I α * | u | 2 α * ) | u | 2 α * − 2 u in R N , ∫ R N | u | 2 d x = τ 2 , where
N ⩾ 3 ,
τ > 0 ,
I α is the Riesz potential of order