Extended gauge mediation in the NMSSM with displaced LHC signals Marcin Badziak, Nishita Desai, Cyril Hugonie and Robert Ziegler Eur. Phys. J. C, 79 1 (2019) 67 Published online: 28 January 2019 DOI: 10.1140/epjc/s10052-019-6590-1