Neutron-skin effect in direct-photon and charged-hadron production in Pb+Pb collisions at the LHCIlkka Helenius, Hannu Paukkunen and Kari J. EskolaEur. Phys. J. C, 77 3 (2017) 148DOI: https://doi.org/10.1140/epjc/s10052-017-4709-9