Physical characterization of recently discovered globular clusters in the Sagittarius dwarf spheroidal galaxy - I. Metallicities, ages, and luminositiesE. R. Garro, D. Minniti, M. Gómez and J. Alonso-GarcíaA&A, 654 (2021) A23DOI: https://doi.org/10.1051/0004-6361/202141067