Low-lying doubly heavy baryons: Regge relation and mass scaling YongXin Song, Duojie Jia, WenXuan Zhang and Atsushi Hosaka Eur. Phys. J. C, 83 1 (2023) 1 Published online: 01 January 2023 DOI: 10.1140/epjc/s10052-022-11136-9