2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/182514Using chi_cJ -> 2(π^+π^-) ppbar decays from 14 \times 10^6 psi(2S) events accumulated by the BESII detector at the BEPC, the intermediate states Xi^+Xi^-, Lambda Lambdabar pi^+ pi^-, and K_SK_S p pbar are studied, and their branching ratios or upper limits are measured.10 pages, 5 figuresHigh Energy Physics - Experimenttext