Sterile neutrinos, decay and the W-boson mass anomaly in a flipped SU(5) from F-theoryVasileios Basiouris and George K. LeontarisEur. Phys. J. C, 82 11 (2022) 1041DOI: https://doi.org/10.1140/epjc/s10052-022-11005-5