Impulsive Solar Flares in the Parker Solar Probe Era. I. Low-energy Electron, Proton, and Alpha Beams - Alnussirat,ST; Larson,DE; Livi,R; Whittlesey,PL; Rahmati,A; Romeo,O; Huang,J; Liu,M; Pulupa,M; Bale,SD; Raouafi,N; McComas,DJ (ASTROPHYSICAL JOURNAL, 2025)