On redshift evolution and negative dark energy density in Pantheon + Supernovae M. Malekjani, R. Mc Conville, E. Ó Colgáin, S. Pourojaghi and M. M. Sheikh-Jabbari Eur. Phys. J. C, 84 3 (2024) 317 Published online: 25 March 2024 DOI: 10.1140/epjc/s10052-024-12667-z