Presolar grain isotopic ratios as constraints to nuclear physics inputs for s-process calculations Sara Palmerini, Maurizio Busso, Diego Vescovi, Sergio Cristallo, Alberto Mengoni, Stefano Simonucci and Simone Taioli EPJ Web Conf., 279 (2023) 06006 Published online: 22 March 2023 DOI: 10.1051/epjconf/202327906006