Feijoo Fontán, MartinaBarrière, AntoineMozumdar, NikhilÁlvarez Pol, HéctorRodríguez Sánchez, José LuisSorlin, OlivierBenlliure Anaya, JoséCortina Gil, María Dolores2025-10-132025-10-132025-07Feijoo Fontán, M., Barrière, A., Mozumdar, N., Álvarez Pol, H., Rodríguez Sánchez, J.L., Sorlin, O., Benlliure, J., Cortina Gil, D. and the R3B collaboration. Development of a PID algorithm for the CALIFA detector to study multinucleon knockout reactions in exotic nuclei. Nuclear Physics A, 1059, 1-4. https://doi.org/10.1016/j.nuclphysa.2025.1231030375-9474https://hdl.handle.net/10347/43069Previous studies have shown a reduction in cross sections relative to theoretical predictions for single-nucleon knockout reactions, with varying conclusions about the dependence of this reduction on the N/Z ratio of the projectile. The (p,pX) knockout reactions studied with the R3B setup offer a unique opportunity for kinematically complete measurements using inverse kinematics. This work focuses on the development of an algorithm for performing particle identification using the CALIFA detector, of vital importance for the study of knocked-out clusters such as deuterium.eng© 2025 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/Knockout reactionsR3BGSI-FAIRjournal article10.1016/j.nuclphysa.2025.123103open access