Enhancement of the sterile neutrinos yield at high matter density and at increasing the medium neutronization

Abstract

The relative yields of active and sterile neutrinos in the matter with a high density and different degree of neutronization are calculated. A significant increase in the proportion of sterile neutrinos produced in superdense matter when degree of neutronization approaches the value of two is found. The results obtained can be used in the calculations of the neutrino fluxes for media with a high density and different neutronization degrees in astrophysical processes such as the formation of protoneutron core of a supernova.

arXiv comment7 pages, 4 figures, references and a footnote are added, style and typos are corrected

References in corpus (13)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Sterile Neutrinos as Dark Matter
• Sterile neutrinos: the dark side of the light fermions
• A simple parameterization of the consequences of deleptonization for simulations of stellar core collapse
• Search for a Light Sterile Neutrino at Daya Bay
• Impact of eV-mass sterile neutrinos on neutrino-driven supernova outflows
• Sterile Neutrino-Enhanced Supernova Explosions
• Impact of active-sterile neutrino mixing on supernova explosion and nucleosynthesis
• Sterile Neutrinos and Light Dark Matter Save Each Other
• The LSND and MiniBooNE Oscillation Searches at High $\Delta m^2$
• Left-Right Symmetric Theory with Light Sterile Neutrinos
• Mass characteristics of active and sterile neutrinos in a phenomenological (3+1+2)-model
• Active-sterile neutrino mixing in the absence of bare active neutrino mass

Cited by in corpus (3)

• Oscillation characteristics of active and sterile neutrinos and neutrino anomalies at shot distances
• Neutrino Fluxes from a Core-Collapse Supernova in a Model with Three Sterile Neutrinos
• Active neutrino oscillations and double beta decay characteristics with sterile neutrinos contributions