Probing post-bounce supernova density profile from neutrino signals

Study of core collapse neutrino signals and constraints on neutrino masses from a future Galactic Supernova

We study the sensitivity to neutrino masses of a Galactic supernova neutrino signal as could be measured with the detectors presently in operation and with future large volume water Čerencov and scintillator detectors. The analysis uses the full statistics of neutrino events. The method proposed uses the principles of Bayesian inference reasoning and has shown a remarkably independence of astro...

Probing neutrino mass hierarchies and phi(13) with supernova neutrinos

Probing the origins of neutrino mass with supernova data.

We study type II supernova signatures of neutrino mass generation via symmetry breaking at a scale in the range from keV to MeV. The scalar responsible for symmetry breaking is thermalized in the supernova core and restores the symmetry. The neutrinos from scalar decays have about half the average energy of thermal neutrinos. The Bose-Einstein distribution of the scalars can be established with...

Probing neutrino mass hierarchies and φ13 with supernova neutrinos

We investigate the feasibility of probing the neutrino mass hierarchy and the mixing angle φ13 with the neutrino burst from a future supernova. An inverse power-law density ρ ∼ r with varying n is adopted in the analysis as the density profile of a typical core-collapse supernova. The survival probabilities of νe and ν̄e are shown to reduce to two-dimensional functions of n and φ13. It is found ...

Supernova neutrino fluxes from the LSD neutrino signal from SN1987A

Detection of 5 events by the Liquid Scintillation Detector (LSD) on February, 23, 1987 was recently interpreted as a detection of the electron neutrino flux from the first stage of the two-stage Supernova collapse [1][2]. We show that, if neutrino mass hierarchy is normal, such interpretation excludes values of neutrino mixing angle θ13 larger than 3 · 10 , independently of the particular Super...