Erratum to: A study of vorticity formation in high energy nuclear collisionsF. Becattini, G. Inghirami, V. Rolando, A. Beraudo, L. Del Zanna, A. De Pace, M. Nardi, G. Pagliara and V. ChandraEur. Phys. J. C, 78 5 (2018) 354DOI: https://doi.org/10.1140/epjc/s10052-018-5810-4