Impact of Q-balls formed by first-order phase transition on sterile neutrino dark matter Jiucheng Ma, Siyu Jiang and Xiu-Fei Li Eur. Phys. J. C, 84 10 (2024) 1016 Published online: 07 October 2024 DOI: 10.1140/epjc/s10052-024-13380-7