Collective neutrino oscillations in matter andCPviolation

2008/07/31 by Jerome Gava, Jérôme Gava, Cristina Volpe · 4 citations
Physics and Astronomy · #Astrophysics #Astrophysics and Cosmic Phenomena #Electron #Electron neutrino #Lepton #Muon #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Supernova #astro-ph #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevd.78.083007

published as Phys.Rev.D78:083007,2008 · 8 pages and 9 figures

openalex publication_date 2008/10/16 · arxiv created 2008/10/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We explore CP violation effects on the neutrino propagation in dense environments, such as in core-collapse supernovae, where the neutrino self-interaction induces nonlinear evolution equations. We demonstrate that the electron (anti)neutrino fluxes are not sensitive to the CP violating phase if the muon and tau neutrinos interact similarly with matter. On the other hand, we numerically show that new features arise, because of the nonlinearity and the flux dependence of the evolution equations, when the muon and tau neutrinos have different fluxes at the neutrinosphere (due to loop corrections or physics beyond the standard model). In particular, the electron (anti)neutrino probabilities and fluxes depend upon the CP violating phase. We also discuss the CP effects induced by radiative corrections to the neutrino refractive index.

Citations

• Review of Particle Physics
• Beta-beams
• Simulation of coherent nonlinear neutrino flavor transformation in the supernova environment: Correlated neutrino trajectories
• Oscillation effects and time variation of the supernova neutrino signal
• Self-induced conversion in dense neutrino gases: Pendulum in flavor space
• Neutrino mixing and nucleosynthesis in core-collapse supernovae
• First real time detection of 7Be solar neutrinos by Borexino
• Measurement of the Rate ofνe+d→p+p+e−Interactions Produced byB<mml:mprescripts/>8Solar Neutrinos at the Sudbury Neutrino Observatory
• Probing nonstandard neutrino interactions with supernova neutrinos
• Neutrino-neutrino scattering and matter-enhanced neutrino flavor transformation in supernovae
• Supernova neutrinos: difference of ν–ν fluxes and conversion effects

Cited by

• Collective Neutrino Oscillations
• Shock waves in supernovae: New implications on the diffuse supernova neutrino background
• Neutrino decoupling including flavour oscillations and primordial nucleosynthesis
• Triggering collective oscillations by three-flavor effects