Supernova Neutrino Spectra and Applications to Flavor Oscillations

作者: Mathias Thorsten Keil

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摘要: We study the flavor-dependent neutrino spectra formation in core of a supernova (SN) by means Monte Carlo simulations. A high-statistics signal from galactic SN may contain information that severely constrains parameter space for oscillations. Therefore, reliable predictions fluxes and are urgently needed. In all traditional hydrodynamic simulations nu_mu,tau nu_mu,tau-bar interactions commonly included rather schematic. With our we find most relevant sources traditionally not included. comparing numerical results flavors standard hierarchy mean energies nu_e < nu_e-bar nu_mu,tau, with, however, very similar values nu_e-bar. The luminosities can differ up to factor 2 L_nue-bar L_nue, latter two similar. Garching Group obtains their self-consistent simulation with full set interactions. These almost orthogonal previous picture exactly equal differences 2. Existing concepts identifying oscillation effects need be revised. present methods detecting earth-matter effect independent

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