A relook at the GZK Neutrino-Photon Connection: Impact of Extra-galactic Radio Background & UHECR properties

Abstract

Ultra-high energy cosmic rays (UHECRs) beyond the Greisen-Zatsepin-Kuzmin (GZK) cut-off provide us with a unique opportunity to understand the universe at extreme energies. Secondary GZK photons and GZK neutrinos associated with the same interaction are indeed interconnected and render access to multi-messenger analysis of UHECRs. The GZK photon flux is heavily attenuated due to the interaction with Cosmic Microwave Background (CMB) and the Extra-galactic Radio Background (ERB). The present estimate of the ERB comprising of several model uncertainties together with the ARCADE2 radio results in large propagation uncertainties in the GZK photon flux. On the other hand, the weakly interacting GZK neutrino flux is unaffected by these propagation effects. In this work, we make an updated estimate of the GZK photon and GZK neutrino fluxes considering a wide variation of both the production and propagation properties of the UHECR like, the spectral index, the cut-off energy of the primary spectrum, the distribution of sources and the uncertainties in the ERB estimation. We explore the detection prospects of the GZK fluxes with various present and upcoming UHECR and UHE neutrino detectors such as Auger, TA, GRAND, ANITA, ARA, IceCube and IceCube-Gen2. The predicted fluxes are found to be beyond the reach of the current detectors. In future, proposed IceCube-Gen2, Auger upgrade and GRAND experiments will have the sensitivity to the predicted GZK photon and GZK neutrino fluxes. Such detection can put constraints on the UHECR source properties and the propagation effects due to the ERB. We also propose an indirect limit on the GZK photon flux using the neutrino-photon connection for any future detection of GZK neutrinos by the IceCube-Gen2 detector. We find this limit to be consistent with our GZK flux predictions.

arXiv commentAccepted for publication in JCAP

References in corpus (72)

• The Temperature of the Cosmic Microwave Background
• Multi-messenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A
• High Energy Neutrinos from Astrophysical Sources: An Upper Bound
• The spectrum of isotropic diffuse gamma-ray emission between 100 MeV and 820 GeV
• First Observation of the Greisen-Zatsepin-Kuzmin Suppression
• Origin and Propagation of Extremely High Energy Cosmic Rays
• IceCube-Gen2: The Window to the Extreme Universe
• On astrophysical solution to ultra high energy cosmic rays
• Depth of Maximum of Air-Shower Profiles at the Pierre Auger Observatory: Measurements at Energies above 10^17.8 eV
• The IceCube high-energy starting event sample: Description and flux characterization with 7.5 years of data
• Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory
• ARCADE 2 Measurement of the Extra-Galactic Sky Temperature at 3-90 GHz
• On the cosmic ray bound for models of extragalactic neutrino production
• CRPropa 3 - a Public Astrophysical Simulation Framework for Propagating Extraterrestrial Ultra-High Energy Particles
• Depth of Maximum of Air-Shower Profiles at the Pierre Auger Observatory: Composition Implications
• Observation of high-energy neutrinos from the Galactic plane
• The Giant Radio Array for Neutrino Detection (GRAND): Science and Design
• Measurement of the Flux of Ultrahigh Energy Cosmic Rays from Monocular Observations by the High Resolution Fly's Eye Experiment
• The First LHAASO Catalog of Gamma-Ray Sources
• GZK Neutrinos after the Fermi-LAT Diffuse Photon Flux Measurement
• Extremely high energy cosmic rays from relic particle decays
• Measurement of the cosmic-ray energy spectrum above $2.5\times 10^{18}$ eV using the Pierre Auger Observatory
• Upper limit on the cosmic-ray photon flux above 10^19 eV using the surface detector of the Pierre Auger Observatory
• The Antarctic Impulsive Transient Antenna Ultra-high Energy Neutrino Detector Design, Performance, and Sensitivity for 2006-2007 Balloon Flight
• A new estimate of the extragalactic radio background and implications for ultra-high-energy gamma-ray propagation
• Performance of two Askaryan Radio Array stations and first results in the search for ultra-high energy neutrinos
• The high energy cosmic ray spectrum from relic particle decay
• Measurement of ultra-high-energy diffuse gamma-ray emission of the Galactic plane from 10 TeV to 1 PeV with LHAASO-KM2A
• Evidence for a mixed mass composition at the `ankle' in the cosmic-ray spectrum
• Cosmogenic Neutrinos from Ultra-High Energy Nuclei
• The energy spectrum of cosmic rays beyond the turn-down around $10^{17}$ eV as measured with the surface detector of the Pierre Auger Observatory
• Probing the origin of ultra-high-energy cosmic rays with neutrinos in the EeV energy range using the Pierre Auger Observatory
• The Impact of Heavy Nuclei on the Cosmogenic Neutrino Flux
• GZK Photons as Ultra High Energy Cosmic Rays
• The Pierre Auger Observatory Upgrade - Preliminary Design Report
• CRPropa 3.2 -- an advanced framework for high-energy particle propagation in extragalactic and galactic spaces
• On the statistical significance of the GZK feature in the spectrum of ultra high energy cosmic rays
• CRPropa 2.0 -- a Public Framework for Propagating High Energy Nuclei, Secondary Gamma Rays and Neutrinos
• Determining the fraction of cosmic-ray protons at ultra-high energies with cosmogenic neutrinos
• Potential PeVatron supernova remnant G106.3+2.7 seen in the highest-energy gamma rays
• Tight Constraints on the Excess Radio Background at $z=9.1$ from LOFAR
• Constraints on the diffuse high-energy neutrino flux from the third flight of ANITA
• Predictions for the Cosmogenic Neutrino Flux in Light of New Data from the Pierre Auger Observatory
• ARCADE 2 Observations of Galactic Radio Emission
• Cosmogenic Neutrinos Challenge the Cosmic Ray Proton Dip Model
• The contribution of the Unresolved Extragalactic Radio Sources to the Brightness Temperature of the sky
• Updated Results from the RICE Experiment and Future Prospects for Ultra-High Energy Neutrino Detection at the South Pole
• A dark matter interpretation for the ARCADE excess?
• Neutrino diagnostics of ultra-high energy cosmic ray protons
• Constraining the sources of ultra-high-energy cosmic rays across and above the ankle with the spectrum and composition data measured at the Pierre Auger Observatory
• Is there an unaccounted excess Extragalactic Cosmic Radio Background?
• Cosmogenic neutrinos and ultra-high energy cosmic ray models
• IceCube Data for Neutrino Point-Source Searches Years 2008-2018
• Point-source and diffuse high-energy neutrino emission from Type IIn supernovae
• Cosmogenic photons as a test of ultra-high energy cosmic ray composition
• The Cosmic Microwave Background: The history of its experimental investigation and its significance for cosmology
• Final Results from the High Resolution Fly's Eye (HiRes) Experiment
• The Pierre Auger Observatory: Contributions to the 34th International Cosmic Ray Conference (ICRC 2015)
• The Anisotropy of the Ultra-High Energy Cosmic Rays
• Revisiting ultrahigh-energy constraints on decaying super-heavy dark matter
• Radio synchrotron emission from secondary electrons in interaction-powered supernovae
• Cosmogenic Neutrinos Through the GRAND Lens Unveil the Nature of Cosmic Accelerators
• Super Heavy Dark Matter and UHECR Anisotropy at Low Energy
• An updated estimate of the cosmic radio background and implications for ultra-high-energy photon propagation
• Constraints on the proton fraction of cosmic rays at the highest energies and the consequences for cosmogenic neutrinos and photons
• Acceleration and Interaction of Ultra High Energy Cosmic Rays
• Overview of lunar detection of ultra-high energy particles and new plans for the SKA
• Probing LHAASO Galactic PeVatrons through gamma-ray and neutrino correspondence
• Pierre Auger Observatory and Super Heavy Dark Matter
• Constraining superheavy dark matter model of UHECR with SUGAR data
• Detection of Ultra High Energy Cosmic Rays and Neutrinos with Lunar Orbital Radio Telescope
• New physics from ultrahigh energy cosmic rays