Heavy neutrino as dark matter in a neutrinophilic U(1) model Waleed Abdallah, Anjan Kumar Barik, Santosh Kumar Rai and Tousik Samui Eur. Phys. J. C, 84 10 (2024) 1087 Published online: 19 October 2024 DOI: 10.1140/epjc/s10052-024-13407-z