Classical and quantum cosmology of f(R) gravity’s rainbow in Schutz’s formalism Andrés Burton-Villalobos, Giovanni Otalora, Manuel Gonzalez-Espinoza and Yoelsy Leyva Eur. Phys. J. C, 85 6 (2025) 716 Published online: 30 June 2025 DOI: 10.1140/epjc/s10052-025-14454-w