Preface: XLV Symposium on Nuclear Physics, Cocoyoc, Morelos, México Roelof Bijker, Daniel José Marín Lámbarri and Tochtli Cuauhtli Yépez Martínez EPJ Web Conf., 301 (2024) 00001 Published online: 07 August 2024 DOI: 10.1051/epjconf/202430100001