Multi-GeV electron beam generation via two-stage laser wakefield acceleration. - Haq, Rashid Ul; Rezaei-Pandari, Mohammad; Xie, Xinglong; Liang, Xiao; Sun, Meizhi; Zhu, Ping; Lu, Zhantao; Zhang, Guoli; Li, Linjun; Xue, Hao; Hafz, Nasr A. M.; Zhu, Jianqiang (Scientific Reports, 2025)