Non-standard neutrino spectra from annihilating neutralino dark matter

Abstract

Neutrino telescope experiments are rapidly becoming more competitive in indirect detection searches for dark matter. Neutrino signals arising from dark matter annihilations are typically assumed to originate from the hadronisation and decay of Standard Model particles. Here we showcase a supersymmetric model, the BLSSMIS, that can simultaneously obey current experimental limits while still providing a potentially observable non-standard neutrino spectrum from dark matter annihilation.

New energy spectra in neutrino and photon detectors to reveal hidden dark matter signals

“…Comparison of the spectra between MadGraph/Pythia (orange) and the sampling code (blue). The upper left and lower two spectra were generated with simplified models, while the upper right spectrum is an example point from a full model [53]. The lower two plots show the same model, but evaluated at different energies.…”

“…In figure 1 four different example spectra are shown of which the process is indicated in the relevant plot. The top left and bottom two plots are generated through a simplified model in which X is a spin-0 or spin-1/2 particle respectively, while the spectrum from of top right plot is used from [53]. The decay mode of X of the two spectra from the simplified models both have a branching ratio of 100% into a single decay mode, while the spectrum in the top right has a more complicated decay mode of BR…”