One-loop effective action up to dimension eight: integrating out heavy scalar(s)Upalaparna Banerjee, Joydeep Chakrabortty, Shakeel Ur Rahaman and Kaanapuli RamkumarEur. Phys. J. Plus, 139 2 (2024) 159DOI: https://doi.org/10.1140/epjp/s13360-024-04890-0