Polarization in (quasi-)two-body decays and new physics

Z. J. Ajaltouni, E. Di Salvo

We consider two-body and quasi-two-body decays of the type $f_1\to f_{2}B$, where $f_1$ and $f_2$ are spin-1/2 fermions and $B$ a spin-0 or spin-1 boson. After recalling the non-co…