TY - JOUR AU - Dias, J. M. AU - Toledo, G. AU - Roca, L. AU - Oset, E. PY - 2021 DA - 2021// TI - Unveiling the K-1(1270) double-pole structure in the (B)over-bar -> J/psi rho(K)over-bar and (B)over-bar -> J/psi(K)over-bar*pi decays T2 - Phys. Rev. D JO - Physical Review D SP - 116019 EP - 13pp VL - 103 IS - 11 PB - Amer Physical Soc AB - By looking at the pseudoscalar-vector meson spectra in the (B) over bar -> J/psi rho(K) over bar and (B) over bar -> J/psi(K) over bar*pi weak decays, we theoretically investigate the double-pole structure of the K-1 (1270) resonance by using the chiral unitary approach to account for the final-state interactions between the pseudoscalar (P) and vector (V) mesons. The K-1 (1270) resonance is dynamically generated through these interactions in coupled channels and influences the shape of the invariant mass distributions under consideration. We show how these shapes are affected by the K-1 (1270) double-pole structure to confront the results from our model with future experiments that might investigate the PV spectra in these decays. SN - 2470-0010 UR - https://arxiv.org/abs/2102.08402 UR - https://doi.org/10.1103/PhysRevD.103.116019 DO - 10.1103/PhysRevD.103.116019 LA - English N1 - WOS:000664520700018 ID - Dias_etal2021 ER -