Axial gravity: a non-perturbative approach to split anomalies L. Bonora, M. Cvitan, P. Dominis Prester, S. Giaccari, M. Paulišić and T. Štemberga Eur. Phys. J. C, 78 8 (2018) 652 Published online: 17 August 2018 DOI: 10.1140/epjc/s10052-018-6141-1