Relic neutrinos at accelerator experiments

Abstract

We present a new technique for observing low energy neutrinos with the aim of detecting the cosmic neutrino background using ion storage rings. Utilising high energy targets exploits the quadratic increase in the neutrino capture cross section with beam energy, and with sufficient beam energy, enables neutrino capture through inverse-beta decay processes from a stable initial state. We also show that there exist ion systems admitting resonant neutrino capture, capable of achieving larger capture cross sections at lower beam energies than their non-resonant counterparts. We calculate the neutrino capture rate and the optimal experimental runtime for a range of different resonant processes and target ions and we demonstrate that the resonant capture experiment can be performed with beam energies as low as $\mathcal{O}(10\mathrm{TeV})$ per target nucleon. Unfortunately, none of the ion systems discussed here can provide sufficient statistics to discover the cosmic neutrino background with current technology. We address the challenges associated with realising this experiment in the future, taking into account the uncertainty in the beam and neutrino momentum distributions, synchrotron radiation, as well as the beam stability.

arXiv comment18 pages, 8 figures. Original title: Observing relic neutrinos with an accelerator experiment

References in corpus (27)

• The chemical composition of the Sun
• New solar opacities, abundances, helioseismology, and neutrino fluxes
• From eV to EeV: Neutrino Cross Sections Across Energy Scales
• The Borexino detector at the Laboratori Nazionali del Gran Sasso
• A new Generation of Standard Solar Models
• Ultrahigh energy neutrino scattering onto relic light neutrinos in galactic halo as a possible source of highest energy extragalactic cosmic rays
• Gravitational clustering of relic neutrinos and implications for their detection
• Neutrino physics with the PTOLEMY project: active neutrino properties and the light sterile case
• Detection of a particle shower at the Glashow resonance with IceCube
• Grand Unified Neutrino Spectrum at Earth: Sources and Spectral Components
• Determining the neutrino mass with Cyclotron Radiation Emission Spectroscopy - Project 8
• Detecting non-relativistic cosmic neutrinos by capture on tritium: phenomenology and physics potential
• The Electron Capture ${}^{163}$Ho Experiment ECHo: an overview
• Relic Neutrino Absorption Spectroscopy
• Cosmological Neutrino Background Revisited
• Charged current cross section for massive cosmological neutrinos impinging on radioactive nuclei
• Calculation of the local density of relic neutrinos
• Detection prospects for the Cosmic Neutrino Background using laser interferometers
• Probing Low Energy Neutrino Backgrounds with Neutrino Capture on Beta Decaying Nuclei
• Solar neutrino flux at keV energies
• Experimental method of detecting relic neutrino by atomic de-excitation
• Neutrino clustering in the Milky Way and beyond
• Performance and luminosity models for heavy-ion operation at the CERN Large Hadron Collider
• Detecting a Secondary Cosmic Neutrino Background from Majoron Decays in Neutrino Capture Experiments
• Precise Capture Rates of Cosmic Neutrinos and Their Implications on Cosmology
• A Relic Neutrino Detector
• Resonant antineutrino induced electron capture with low energy bound-beta beams

Cited by in corpus (3)

• Limits on the cosmic neutrino background
• Updated detection prospects for relic neutrinos using coherent scattering
• Unstable Cosmic Neutrino Capture