Spectra of neutrinos from dark matter annihilations

By Marco Cirelli, N. Fornengo, T. Montaruli, I. Sokalski, Alessandro Strumia, F. Vissani. 2005

145 citations recorded by the source corpus.

Abstract We study the fluxes of neutrinos from annihilations of dark matter particles in the Sun and the Earth. We give the spectra of all neutrino flavors for the main known annihilation channels: ν ν ¯ , b b ¯ , τ τ ¯ , c c ¯ , light quarks, ZZ, W + W − . We present the appropriate formalism for computing the combined effect of oscillations, absorptions, ν τ -regeneration. Total rates are modified by an O ( 0.1 – 10 ) factor, comparable to astrophysical uncertainties, that instead negligibly affect the spectra. We then calculate different signal topologies in neutrino telescopes: through-going muons, contained muons, showers, and study their capabilities to discriminate a dark matter signal from backgrounds. We finally discuss how measuring the neutrino spectra can allow to reconstruct the fundamental properties of the dark matter: its mass and its annihilation branching ratios.

View Paper: https://www.semanticscholar.org/paper/e174bb6911cb5876de3527ca4f67a9a62f9ee46e

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

Citations in the corpus

micrOMEGAs_3: A program for calculating dark matter observables (2013, methodology): “Effects of interaction with Sun/Earth medium as well as neutrino oscillation are taken into account [64].”
Sneutrino cold dark matter, a new analysis: Relic abundance and detection rates (2007, result): “The antiproton flux has then to be propagated against the solar wind in order to provide fluxes at the Earth position, i.e. ”top–of–atmosphere” (TOA) fluxes.”
Galactic Searches for Dark Matter (2012, background): “ttering cross section. The spectrum of neutrinos produced per annihilation is generated from Pythia; tting formula for dark matter annihilation into quarks, leptons, and gauge bosons are presented in Cirelli et al. (2005). Low-energy neutrinos that are produced from annihilation and decay products t”
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 2: The Physics Program for DUNE at LBNF (2015, background): “Signals of DM via neutrinos can come from such distant objects as the galactic center, the center of the Sun or even the Earth [108, 109, 110, 111, 112].”
MadDM v.3.0: A comprehensive tool for dark matter studies (2018, background): “0 release we do not include the case of neutrinos coming from annihilation of dark matter in the center of the Sun [60–62], which experience oscillation effects due to the interaction with matter.”
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 1: The LBNF and DUNE Projects (2015, background): “Signals of DM via neutrinos can come from such distant objects as the galactic center, the center of the Sun or even the Earth [108, 109, 110, 111, 112].”
The Long-Baseline Neutrino Experiment: Exploring Fundamental Symmetries of the Universe (2013, background): “Detection of high-energy neutrinos coming exclusively from the Sun’s direction, for example, would provide clear evidence of dark matter annihilation [320].”