Realization of self-interacting freeze-in dark matter Sudipta Show, Purusottam Ghosh, Partha Konar and Abhijit Kumar Saha Eur. Phys. J. Spec. Top., 233 11-12 (2024) 2143-2148 Published online: 05 March 2024 DOI: 10.1140/epjs/s11734-024-01122-5