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)