Discerning the two $K_1(1270)$ poles in $D^0\to {\pi }^{+}VP$ decay

G. Y. Wang, L. Roca, E. Oset

Within the chiral unitary approach, the axial-vector resonance $K_1(1270)$ has been predicted to manifest a two-pole nature. The lowest pole has a mass of 1195 Mev and a width of 2…