Bump-hunting in the diffuse flux of high-energy cosmic neutrinos
arXiv:2301.00024 · doi:10.1103/PhysRevD.107.083008
Abstract
The origin of the bulk of the high-energy astrophysical neutrinos seen by IceCube, with TeV--PeV energies, is unknown. If they are made in photohadronic, i.e., proton-photon, interactions in astrophysical sources, this may manifest as a bump-like feature in their diffuse flux, centered around a characteristic energy. We search for evidence of this feature, allowing for variety in its shape and size, in 7.5 years of High-Energy Starting Events (HESE) collected by the IceCube neutrino telescope, and make forecasts using larger data samples from upcoming neutrino telescopes. Present-day data reveals no evidence of bump-like features, which allows us to constrain candidate populations of photohadronic neutrino sources. Near-future forecasts show promising potential for stringent constraints or decisive discovery of bump-like features. Our results provide new insight into the origins of high-energy astrophysical neutrinos, complementing those from point-source searches.
29 pages, 13 figures
References in corpus (60)
- IceCube-Gen2: The Window to the Extreme Universe
- Observation and Characterization of a Cosmic Muon Neutrino Flux from the Northern Hemisphere using six years of IceCube data
- Evidence for neutrino emission from the nearby active galaxy NGC 1068
- Calculation of atmospheric neutrino flux using the interaction model calibrated with atmospheric muon data
- Time-integrated Neutrino Source Searches with 10 years of IceCube Data
- The IceCube high-energy starting event sample: Description and flux characterization with 7.5 years of data
- Atmospheric and Astrophysical Neutrinos above 1 TeV Interacting in IceCube
- Characteristics of the diffuse astrophysical electron and tau neutrino flux with six years of IceCube high energy cascade data
- A tidal disruption event coincident with a high-energy neutrino
- Improved Characterization of the Astrophysical Muon-Neutrino Flux with 9.5 Years of IceCube Data
- A statistical test for Nested Sampling algorithms
- Constraining High-Energy Cosmic Neutrino Sources: Implications and Prospects
- The Origin of the Extragalactic Gamma-Ray Background and Implications for Dark-Matter Annihilation
- The Pacific Ocean Neutrino Experiment
- Star-forming galaxies as the origin of diffuse high-energy backgrounds: Gamma-ray and neutrino connections, and implications for starburst history
- Flavor Ratio of Astrophysical Neutrinos above 35 TeV in IceCube
- Detection of a particle shower at the Glashow resonance with IceCube
- Giant AGN Flares and Cosmic Ray Bursts
- The Starburst Contribution to the Extra-Galactic Gamma-Ray Background
- Candidate Tidal Disruption Event AT2019fdr Coincident with a High-Energy Neutrino
- Perturbative charm production and the prompt atmospheric neutrino flux in light of RHIC and LHC
- Vetoing atmospheric neutrinos in a high energy neutrino telescope
- A new view on Auger data and cosmogenic neutrinos in light of different nuclear disintegration and air-shower models
- Observing Invisible Axions with Gravitational Waves
- A generalized self-veto probability for atmospheric neutrinos
- IceCube events and decaying dark matter: hints and constraints
- Energy dependent neutrino flavor ratios from cosmic accelerators on the Hillas plot
- High-Energy Neutrino and Gamma-Ray Emission from Tidal Disruption Events
- Influence of hadronic interaction models and the cosmic ray spectrum on the high energy atmospheric muon and neutrino flux
- High-Energy Neutrino Flares From X-Ray Bright and Dark Tidal Disruptions Events
- AGN jets as the origin of UHECRs and perspectives for the detection of astrophysical source neutrinos at EeV energies
- Which is the flavor of cosmic neutrinos seen by IceCube?
- Inferring the flavor of high-energy astrophysical neutrinos at their sources
- Glashow resonance as a window into cosmic neutrino sources
- High-energy cosmic ray nuclei from tidal disruption events: Origin, survival, and implications
- Complete predictions for high-energy neutrino propagation in matter
- Contribution of starburst nuclei to the diffuse gamma-ray and neutrino flux
- The diffuse -ray background is dominated by star-forming galaxies
- New constraints on the origin of medium-energy neutrinos observed by IceCube
- Interpreting IceCube 6-year HESE data as an evidence for hundred TeV decaying Dark Matter
- Starburst galaxies strike back: a multi-messenger analysis with Fermi-LAT and IceCube data
- Detection of astrophysical tau neutrino candidates in IceCube
- A concordance scenario for the observed neutrino from a Tidal Disruption Event
- The ultra-high-energy neutrino-nucleon cross section: measurement forecasts for an era of cosmic EeV-neutrino discovery
- A binned likelihood for stochastic models
- Are Diffuse High Energy Neutrinos and Gamma-Rays from Starburst Galaxies Observable?
- Soft gamma rays from low accreting supermassive black holes and connection to energetic neutrinos
- Galactic contribution to the high-energy neutrino flux found in track-like IceCube events
- Where do IceCube neutrinos come from? Hints from the diffuse gamma-ray flux
- nuSQuIDS: A toolbox for neutrino propagation
- Bayesian constraints on the astrophysical neutrino source population from IceCube data
- Neutrino signal dependence on gamma-ray burst emission mechanism
- Estimating the Neutrino Flux from Choked Gamma-Ray Bursts
- EeV Astrophysical neutrinos from FSRQs?
- Oscillation of high-energy neutrinos from choked jets in stellar and merger ejecta
- Unified thermal model for photohadronic neutrino production in astrophysical sources
- PLEM: A global and distributed monitoring system of high-energy astrophysical neutrinos
- High-energy neutrino astronomy and the Baikal-GVD neutrino telescope
- Radio-to-gamma-ray synchrotron and neutrino emission from proton-proton interactions in active galactic nuclei
- Gravitational Lensing of the Cosmic Neutrino Background