Contributions to $Z^0$ decays from a X17 extension of the Standard Model

D. O. R. Azevedo, M. L. Bispo, O. M. Del Cima +1

The present work proposes a Born-Infeld contribution to the $U(1{)}_{B-L}$ extension of the Standard Model, where it is introduced associated to the X17 neutral boson. The decay widt…