A Possible Detection of the Cosmic Antineutrino Background in the Presence of Flavor Effects
arXiv:1102.2686 · doi:10.1016/j.physletb.2011.03.044
Abstract
Lusignoli and Vignati have recently pointed out that it is in principle possible to directly detect the cosmic antineutrino background by using the rather stable isotope holmium-163 as a target, which can decay into dysprosium-163 via electron capture (EC) with a very small energy release. In this paper we calculate the rate of the relic antineutrino capture on holmium-163 nuclei against the corresponding EC decay rate by taking account of different neutrino mass hierarchies and reasonable values of theta_13. We show that such flavor effects are appreciable and even important in some cases, and stress that a calorimetric measurement of the cosmic antineutrino background might be feasible in the far future.
13 pages, 5 figures, revised version, accepted for publication in Phys. Lett. B
References in corpus (9)
- Charged current cross section for massive cosmological neutrinos impinging on radioactive nuclei
- Possible Capture of keV Sterile Neutrino Dark Matter on Radioactive beta-decaying Nuclei
- Prospects for cosmic neutrino detection in tritium experiments in the case of hierarchical neutrino masses
- Direct Detection of the Cosmic Neutrino Background Including Light Sterile Neutrinos
- Relic Antineutrino Capture on 163-Ho decaying Nuclei
- Low Energy Antineutrino Detection Using Neutrino Capture on EC Decaying Nuclei
- Sensitivity of Neutrino Mass Experiments to the Cosmic Neutrino Background
- Beta Decaying Nuclei as a Probe of Cosmic Neutrino Background
- Neutrino mass calorimetric searches in the MARE experiment
Cited by in corpus (8)
- The use of low temperature detectors for direct measurements of the mass of the electron neutrino
- Discriminating between Thermal and Nonthermal Cosmic Relic Neutrinos through Annual Modulation at PTOLEMY
- Captures of Hot and Warm Sterile Antineutrino Dark Matter on EC-decaying Ho-163 Nuclei
- Detection Prospects of the Cosmic Neutrino Background
- Prospects of detection of relic antineutrinos by resonant absorption in electron capturing nuclei
- New targets for relic antineutrino capture
- Helicity-changing Decays of Cosmological Relic Neutrinos
- Direct detection of relic active and sterile neutrinos