Z $\to$ 3X decay width from dark matter Standard Model extension

Author:

D. O. R. Azevedo, M. L. Bispo, O. M. Del Cima, J. A. Helayël-Neto

Keyword:

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), High Energy Physics - Theory (hep-th)

journal:

date:

2023-08-08 16:00:00

Abstract

We propose a Born-Infeld contribution to the $U(1)_{B-L}$ extension of the Standard Model to explain the anomalous decay of beryllium by the X17 neutral boson, its possible connections to dark matter and the observed MeV gamma-ray bursts. The decay width of the $Z^0$ decay into 3$X$ process is computed based on NA64 experiment data.

PDF: Z $\to$ 3X decay width from dark matter Standard Model extension.pdf