TY - JOUR
T1 - Neutrino luminosity and matter-induced modification of collective neutrino flavor oscillations in supernovae
AU - Cherry, John F.
AU - Wu, Meng Ru
AU - Carlson, J.
AU - Duan, Huaiyu
AU - Fuller, George M.
AU - Qian, Yong Zhong
PY - 2012/6/7
Y1 - 2012/6/7
N2 - We present the first calculations of self-coupled neutrino flavor oscillations with time integrated luminosities and energy spectra for the neutronization burst of an O-Ne-Mg core-collapse supernova. These calculations allow us to gauge the effects of time varying neutrino luminosity and of the bump in the electron number density profile at the base of the hydrogen envelope in O-Ne-Mg core-collapse supernovae. The bump allows a significant fraction of the low-energy ν e to survive by rendering their flavor-evolution nonadiabatic. Increasing the luminosity of the neutronization burst shifts the bump-affected ν e to lower energy with reduced survival probability. Similarly, lowering the luminosity shifts the bump-affected neutrinos to higher energies. While these low-energy neutrinos lie near the edge of detectability, the population of bump-affected neutrinos has direct influence on the spectral swap formation in the neutrino signal at higher energies.
AB - We present the first calculations of self-coupled neutrino flavor oscillations with time integrated luminosities and energy spectra for the neutronization burst of an O-Ne-Mg core-collapse supernova. These calculations allow us to gauge the effects of time varying neutrino luminosity and of the bump in the electron number density profile at the base of the hydrogen envelope in O-Ne-Mg core-collapse supernovae. The bump allows a significant fraction of the low-energy ν e to survive by rendering their flavor-evolution nonadiabatic. Increasing the luminosity of the neutronization burst shifts the bump-affected ν e to lower energy with reduced survival probability. Similarly, lowering the luminosity shifts the bump-affected neutrinos to higher energies. While these low-energy neutrinos lie near the edge of detectability, the population of bump-affected neutrinos has direct influence on the spectral swap formation in the neutrino signal at higher energies.
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U2 - 10.1103/PhysRevD.85.125010
DO - 10.1103/PhysRevD.85.125010
M3 - Article
AN - SCOPUS:84862303790
SN - 1550-7998
VL - 85
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 12
M1 - 125010
ER -