https://doi.org/10.1140/epjc/s10052-020-8220-3
Regular Article - Theoretical Physics
Tau decay into 
and 
, 
, and two 
1
School of Science, Huzhou University, Huzhou, 313000, Zhejiang, China
2
Department of Physics, Liaoning Normal University, Dalian, 116029, China
3
Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigacíon de Paterna, Aptdo. 22085, 46071, Valencia, Spain
4
Departamento de Física, Universidad de Murcia, 30100, Murcia, Spain
* e-mail: luisroca@um.es
Received:
21
May
2020
Accepted:
7
July
2020
Published online:
25
July
2020
We study the 
decay, with A an axial-vector meson. We produce the and resonances in the Cabibbo favored mode and two 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 quantum numbers. We find that the unmeasured rates for production are similar to those of the and for the two 
states we suggest to separate the present information on the 
invariant masses into 
and 
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 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.
© The Author(s), 2020
