Solar Energetic Particles Produced by a Slow Coronal Mass Ejection at similar to 0.25 au - Giacalone, J; Mitchell, DG; Allen, RC; Hill, ME; McNutt, RL; Szalay, JR; Desai, M; Rouillard, AP; Kouloumvakos, A; McComas, DJ; Christian, ER; Schwadron, NA; et al. (ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2020)