Tau decay into $$\nu _\tau $$ ντ and $$a_1(1260)$$ a1(1260) , $$b_1(1235)$$ b1(1235) , and two $$K_1(1270)$$ K1(1270)
We study the $$\tau \rightarrow \nu _\tau A$$ τ→ντA decay, with A an axial-vector meson. We produce the $$a_1(1260)$$ a1(1260) and $$b_1(1235)$$ b1(1235) resonances in the Cabibbo favored mode and two $$K_1(1270)$$ K1(1270) states in the Cabibbo suppressed mode. We take advantage of previous chiral unitary approach results where these resonances appear dynamically from the vector and pseudoscalar meson interaction in s-wave. Actually two different poles were obtained associated to the $$K_1(1270)$$ K1(1270) quantum numbers. We find that the unmeasured rates for $$b_1(1235)$$ b1(1235) production are similar to those of the $$a_1(1260)$$ a1(1260) and for the two $$K_1$$ K1 states we suggest t…