This is a blog compiling the latest physics news from the American Physical Society. News sources include lay summaries of Physical Review papers written by the papers' authors, APS Physics Tip Sheets from APS staff, and previews of talks from the Society's meetings.
Tuesday, May 29, 2012
Dying stars have a Halo
LQ13224 - We have discovered that within the heart of an exploding star (core-collapse supernova) there is a "Halo" of neutrinos. The neutrinos in this halo, although very few in number, may nevertheless control the way that neutrinos change their flavors, e.g., converting from "electron-type neutrinos" into, say, "muon-type neutrinos". This will force a new paradigm in the way that neutrino flavor is handled in supernovae, and, in turn, could lead to a new understanding of supernova explosions and the origin of the elements.
