Improved formulas of spontaneous fission half-lives for heavy and superheavy nuclei Ziyi Yuan, Dong Bai, Zhen Wang and Zhongzhou Ren Eur. Phys. J. A, 60 3 (2024) 68 Published online: 18 March 2024 DOI: 10.1140/epja/s10050-024-01280-z