https://doi.org/10.1140/epja/i2018-12654-7
Regular Article - Theoretical Physics
Polarization amplitudes in 
decay beyond the Standard Model
1
Department of Physics, Liaoning Normal University, 116029, Dalian, China
2
Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigacíon de Paterna, Aptdo. 22085, 46071, Valencia, Spain
* e-mail: dailr@lnnu.edu.cn
Received:
17
September
2018
Accepted:
16
November
2018
Published online:
17
December
2018
We study the amplitudes of the decay for the different polarizations of the vector meson V, using a formalism where the mapping from the quark degrees of freedom to the meson ones is done with the 3
P
0 model. We extend the formalism to a case, with the operator 
, that can account for different models beyond the Standard Model and study in detail the 
reaction for the different polarizations of the 
. The results are shown in terms of the 
parameter that differs for each model. We find that 
is very different for each of the third components of the vector spin, 
, and in particular the magnitude 
is very sensitive to the parameter, which makes the investigation of this magnitude very useful to test different models beyond the Standard Model.
© SIF, Springer-Verlag GmbH Germany, part of Springer Nature, 2018
