Dark matter indirect detection signals and the nature of neutrinos in the supersymmetric $U(1{)}_{B-L}$ extension of the standard model

Abstract

In this paper, we study the prospects for determining the nature of neutrinos in the context of a supersymmetric $B-L$ extension of the standard model by using dark matter indirect detection signals and bounds on $N_{\text{eff}}$ from the cosmic microwave background data. The model contains two new dark matter candidates whose dominant annihilation channels produce more neutrinos than neutralino dark matter in the minimal supersymmetric standard model. The photon and neutrino counts may then be used to discriminate between the two models. If the dark matter comes from the B-L sector, its indirect signals and impact on the cosmic microwave background can shed light on the nature of the neutrinos. When the light neutrinos are of Majorana type, the indirect neutrino signal from the Sun and the galactic center may show a prompt neutrino box-feature, as well as an earlier cut-off in both neutrino and gamma ray energy spectra. When the light neutrinos are of Dirac type, their contribution to the effective number of neutrinos $N_{\text{eff}}$ is at a detectable level.

11 pages, 3 figures, 2 tables

References in corpus (16)

• PYTHIA 6.4 Physics and Manual
• Calculation of atmospheric neutrino flux using the interaction model calibrated with atmospheric muon data
• Weak Corrections are Relevant for Dark Matter Indirect Detection
• Constraints on the Galactic Halo Dark Matter from Fermi-LAT Diffuse Measurements
• Sneutrino cold dark matter, a new analysis: relic abundance and detection rates
• Right-handed sneutrino as thermal dark matter
• Radiative B-L symmetry breaking in supersymmetric models
• Unifying inflation and dark matter with neutrino masses
• Cosmological constraints on neutrinos after BICEP2
• Light mixed sneutrinos as thermal dark matter
• AMEND: A Model Explaining Neutrino masses and Dark matter testable at the LHC and MEG
• Galaxy Clusters as Reservoirs of Heavy Dark Matter and High-Energy Cosmic Rays: Constraints from Neutrino Observations
• Neutrinos in IceCube/KM3NeT as probes of Dark Matter Substructures in Galaxy Clusters
• Sneutrino Dark Matter and the Observed Anomalies in Cosmic Rays
• Prospects for Indirect Detection of Sneutrino Dark Matter with IceCube
• Schizophrenic Neutrinos and $\nu$-less Double Beta Decay

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