literature
Literature
Authors
Jobs
Seminars
Conferences
DataBETA

Do experiments and astrophysical considerations suggest an inverted neutrino mass hierarchy?

Feb, 1995
13 pages
Published in:
  • Phys.Rev.D 52 (1995) 1288-1291
e-Print:
DOI:
Report number:
  • DOE-ER-40561-185,
  • INT-95-00-83
View in:
pdf
reference search68 citations

Citations per year

19952002200920162021051015
Abstract: (arXiv)
The recent results from the Los Alamos neutrino oscillation experiment, together with assumptions of neutrino oscillation solutions for the solar and atmospheric neutrino deficit problems, may place powerful constraints on any putative scheme for neutrino masses and mixings. Assuming the validity of these experiments and assumptions, we argue that a nearly unique spectrum of neutrino masses emerges as a fit, if two additional astrophysical arguments are adopted: (1) the sum of the light neutrino masses is ∼5 eV\sim 5\ {\rm eV}, as large scale structure simulations with mixed cold plus hot dark matter seem to suggest; and (2) rr-process nucleosynthesis originates in neutrino-heated ejecta from Type II supernovae. In this fit, the masses of the neutrinos must satisfy mνe≈mνs≈2.7 eVm_{{\nu}_e} \approx m_{{\nu}_s} \approx 2.7\ {\rm eV} (where νe{\nu}_e is split from a sterile species, νs{\nu}_s, by ∼10−6 eV\sim {10}^{-6} \ {\rm eV}) and mντ≈mνμ≈1.1 eVm_{{\nu}_{\tau}} \approx m_{{\nu}_{\mu}} \approx 1.1\ {\rm eV} (where these species are split by ∼10−2 eV\sim {10}^{-2} \ {\rm eV}). We discuss alternative neutrino mass spectra that are allowed if we decline to adopt certain experiments or astrophysical models.
Note:
  • 13 pages
  • neutrino: mass
  • mass: neutrino
  • neutrino: mixing angle
  • neutrino: oscillation
  • mass: hierarchy
  • hierarchy: mass
  • neutrino: mass spectrum
  • mass spectrum: neutrino
  • astrophysics
  • interpretation of experiments