We study the \(\tau \rightarrow \nu _\tau A\) decay, with A an axial-vector meson. We produce the \(a_1(1260)\) and \(b_1(1235)\) resonances in the Cabibbo favored mode and two \(K_1(1270)\) 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 \(K_1(1270)\) quantum numbers. We find that the unmeasured rates for \(b_1(1235)\) production are similar to those of the \(a_1(1260)\) and for the two \(K_1\) states we suggest to separate the present information on the \(\bar{K} \pi \pi \) invariant masses into \(\bar{K}^* \pi \) and \(\rho K\) modes, the channels to which these two resonances couple most strongly, predicting that these modes peak at different energies and have different widths. These measurements should shed light on the existence of these two \(K_1\) states. In addition, we have gone one step further making a comparison with experimental results of three meson decay channels, letting the vector mesons of our approach decay into pseudoscalars, and we find an overall good agreement with experiment.A preprint version of the article is available at ArXiv.

中文翻译：

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Tau衰减为$$ \ nu _ \ tau $$ντ和$$ a_1（1260）$$ a1（1260），$$ b_1（1235）$$ b1（1235）和两个$$ K_1（1270）$$ K1（1270）

我们研究了\（\ tau \ rightarrow \ nu _ \ tau A \）的衰减，其中A为轴矢量介子。我们在Cabibbo偏好模式下产生\（a_1（1260）\）和\（b_1（1235）\）共振，在Cabibbo抑制模式下产生两个\（K_1（1270）\）状态。我们利用以前的手性单一方法的结果，其中这些共振从s波中的矢量和伪标量介子相互作用中动态出现。实际上获得了与\（K_1（1270）\）量子数相关的两个不同的极点。我们发现\（b_1（1235）\）的生产的不可测量的速率类似于\（a_1（1260）\）的和两个\（K_1 \）的不可测量速率指出我们建议将\（\ bar {K} \ pi \ pi \）不变质量上的当前信息分为\（\ bar {K} ^ * \ pi \）和\（\ rho K \）模式，这两个共振最强耦合的通道，预测这些模式在不同的能量处达到峰值并具有不同的宽度。这些测量结果应该可以说明这两个\（K_1 \）状态的存在。此外，我们还进一步将其与三个介子衰减通道的实验结果进行了比较，从而使我们方法的矢量介子衰减为伪标量，我们发现与实验的总体吻合良好。该文章的预印本可从ArXiv获得。