Analysis of the resonant components in (B)over-bars0 → J/ψπ+π- - Aaij,R; Abellan,Beteta C; Adeva,B; Adinolfi,M; Adrover,C; Affolder,A; Ajaltouni,Z; Albrecht,J; Alessio,F; Alexander,M; Ali,S; Alkhazov,G; et al. (PHYSICAL REVIEW D, 2012)