Estimation of Baryon Asymmetry from Dark Matter Decaying into IceCube Neutrinos

Abstract

The recent results of IceCube Neutrino Observatory include an excess of PeV neutrino events which appear to follow a broken power law different from the other lower energy neutrinos detected by IceCube. The possible astrophysical source of these neutrinos is still unknown. One possible source of such neutrinos could be the decay of non-thermal, long-living heavy mass Dark Matter, whose mass should be $>10^6\mathrm{GeV}$ and could have produced at the very early Universe. They can undergo cascading decay via both hadronic and leptonic channels to finally produce such high energy neutrinos. This possibility has been explored in this work by studying the decay flux of these Dark Matter candidates. The mass and lifetime of such Dark Matter particles have been obtained by performing a ${\chi }^2$ fit with the PeV neutrino data of IceCube. We finally estimate the baryon asymmetry produced in the Universe due to such Dark Matter decay.

arXiv comment25 pages, 7 figures

References in corpus (38)

• A Universal Density Profile from Hierarchical Clustering
• High Energy Neutrinos from Cosmological Gamma-Ray Burst Fireballs
• Origin and Propagation of Extremely High Energy Cosmic Rays
• Observability of Gamma Rays from Dark Matter Neutralino Annihilations in the Milky Way Halo
• Observation and Characterization of a Cosmic Muon Neutrino Flux from the Northern Hemisphere using six years of IceCube data
• Superheavy dark matter
• Production of massive particles during reheating
• Nonthermal Supermassive Dark Matter
• On the gravitational production of superheavy dark matter
• Neutrinos at IceCube from Heavy Decaying Dark Matter
• Ultra-High Energy Cosmic Rays, Superheavy Long-Living Particles, and Matter Creation after Inflation
• Are IceCube neutrinos unveiling PeV-scale decaying dark matter?
• Constraints on Galactic Neutrino Emission with Seven Years of IceCube Data
• Superheavy dark matter and IceCube neutrino signals:bounds on decaying dark matter
• Constraining Very Heavy Dark Matter Using Diffuse Backgrounds of Neutrinos and Cascaded Gamma Rays
• IceCube events and decaying dark matter: hints and constraints
• Fragmentation functions in SUSY QCD and UHECR spectra produced in top-down models
• Galactic Neutrinos in the TeV to PeV Range
• Heavy decaying dark matter and IceCube high energy neutrinos
• Monte Carlo simulation for jet fragmentation in SUSY-QCD
• Electroweak jet cascading in the decay of superheavy particles
• Constraining heavy decaying dark matter with the high energy gamma-ray limits
• Gamma-ray bounds from EAS detectors and heavy decaying dark matter constraints
• Neutrinos in IceCube from AGN's
• Grand Unification Signal from Ultra High Energy Cosmic Rays?
• A Combined Astrophysical and Dark Matter Interpretation of the IceCube HESE and Throughgoing Muon Events
• Multi-messenger gamma-ray counterpart of the IceCube neutrino signal
• Update on decaying and annihilating heavy dark matter with the 6-year IceCube HESE data
• High-energy Neutrinos from Multi-body Decaying Dark Matter
• Diffuse neutrinos from extragalactic supernova remnants: Dominating the 100 TeV IceCube flux
• Limiting SUSY-QCD spectrum and its application for decays of superheavy particles
• The Galactic Contribution to IceCube's Astrophysical Neutrino Flux
• Probing decaying heavy dark matter with the 4-year IceCube HESE data
• Ultra-high energy LSP
• Active Galactic Nuclei as High-Energy Neutrino Sources
• Searching the Footprint of WIMPZILLAs
• Mass and Life Time of Heavy Dark Matter Decaying into IceCube PeV Neutrinos
• IceCube PeV Neutrinos and Leptophilic Dark Matter

Cited by in corpus (1)

• Using Secondary Tau Neutrinos to Probe Heavy Dark Matter Decays in Earth