Detection of ultra-high-energy neutrinos by IceCube: sterile neutrino scenario
Abstract
The short-baseline neutrino oscillation experiments, the excess of radiation from the measurement of the cosmic microwave background radiation, the necessity of the nonbaryonic dark matter candidate, and the depletion of the neutrino flux in IceCube all seem to hint at new physics beyond the standard model. An economical way to address these issues is to invoke the existence of sterile neutrinos. We present simple extensions of the standard model with additionally three sterile neutrinos and discuss the corresponding PMNS like neutrino flavor mixing matrix. The noteworthy features of the sterile neutrino scenario advocated here are that the lightest one is almost degenerate with one of the active neutrinos, the second sterile has mass of order eV, and the heaviest one is in the keV range. In the present scenario, the short-baseline anomaly is explained through Δm2~1eV2 , the depletion of the muon neutrino flux in IceCube is explained through Δm2~4.0×10-16eV2 , and the dark matter problem is addressed through Δm2~1keV2 . Our proposed mixing matrix is also compatible with the observed neutrino oscillation data. We show that the high-energy muon and the tau neutrino fluxes from Gamma Ray Bursts can be depleted in IceCube by as much as 38 andmore »
- Authors:
-
- California State Univ. (CalState), Long Beach, CA (United States)
- Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1511401
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- European Physical Journal. C, Particles and Fields
- Additional Journal Information:
- Journal Volume: 74; Journal Issue: 6; Journal ID: ISSN 1434-6044
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Rajpoot, Subhash, Sahu, Sarira, and Wang, Hsi Ching. Detection of ultra-high-energy neutrinos by IceCube: sterile neutrino scenario. United States: N. p., 2014.
Web. doi:10.1140/epjc/s10052-014-2936-x.
Rajpoot, Subhash, Sahu, Sarira, & Wang, Hsi Ching. Detection of ultra-high-energy neutrinos by IceCube: sterile neutrino scenario. United States. https://doi.org/10.1140/epjc/s10052-014-2936-x
Rajpoot, Subhash, Sahu, Sarira, and Wang, Hsi Ching. Thu .
"Detection of ultra-high-energy neutrinos by IceCube: sterile neutrino scenario". United States. https://doi.org/10.1140/epjc/s10052-014-2936-x. https://www.osti.gov/servlets/purl/1511401.
@article{osti_1511401,
title = {Detection of ultra-high-energy neutrinos by IceCube: sterile neutrino scenario},
author = {Rajpoot, Subhash and Sahu, Sarira and Wang, Hsi Ching},
abstractNote = {The short-baseline neutrino oscillation experiments, the excess of radiation from the measurement of the cosmic microwave background radiation, the necessity of the nonbaryonic dark matter candidate, and the depletion of the neutrino flux in IceCube all seem to hint at new physics beyond the standard model. An economical way to address these issues is to invoke the existence of sterile neutrinos. We present simple extensions of the standard model with additionally three sterile neutrinos and discuss the corresponding PMNS like neutrino flavor mixing matrix. The noteworthy features of the sterile neutrino scenario advocated here are that the lightest one is almost degenerate with one of the active neutrinos, the second sterile has mass of order eV, and the heaviest one is in the keV range. In the present scenario, the short-baseline anomaly is explained through Δm2~1eV2 , the depletion of the muon neutrino flux in IceCube is explained through Δm2~4.0×10-16eV2 , and the dark matter problem is addressed through Δm2~1keV2 . Our proposed mixing matrix is also compatible with the observed neutrino oscillation data. We show that the high-energy muon and the tau neutrino fluxes from Gamma Ray Bursts can be depleted in IceCube by as much as 38 and 43 %, respectively. These substantial depletions in both muon and tau neutrino fluxes are due to their small but sizable mixing with the sterile neutrinos.},
doi = {10.1140/epjc/s10052-014-2936-x},
journal = {European Physical Journal. C, Particles and Fields},
number = 6,
volume = 74,
place = {United States},
year = {Thu Jun 26 00:00:00 EDT 2014},
month = {Thu Jun 26 00:00:00 EDT 2014}
}
Web of Science
Figures / Tables:
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