1996/05/18 by Edward W. Kolb, E. W. Kolb, Rabindra N. Mohapatra +3 · 1 citation
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #astro-ph #hep-ph
paper · pdf · doi:10.1103/physrevlett.77.3066
published as Phys.Rev.Lett. 77 (1996) 3066-3069 · 12 pages; Latex
arxiv created 1996/05/18 · openalex publication_date 1996/10/07 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider the possibility that a light, sterile-neutrino species \ensuremathνS can be produced by \ensuremathνe scattering during the cooling of a proto-neutron star. If we parametrize the sterile-neutrino production cross section by a parameter A as \ensuremathσ(\ensuremathνeX\ensuremath→\ensuremathνSX)\phantom\rule0ex0ex=\phantom\rule0ex0exA\ensuremathσ(\ensuremathνeX\ensuremath→\ensuremathνeX), where X is an electron, neutron, or proton, we show that A is constrained by limits to the conversion of \ensuremathνe to \ensuremathνS in the region between the sterile-neutrino trapping region and the electron-neutrino trapping region. This consideration excludes values of A in the range 10^\ensuremath-4\ensuremath\lesssimA\ensuremath\lesssim10^\ensuremath-1.