Naslov
Resolving neutrino mass hierarchy from supernova (anti)neutrino-nucleus reactions

Autori
Vale, Deni ; Paar, Nils

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
American Institute of Physics (AIP) Conference Proceedings 1681 / Matej Lipoglavšek, Matko Milin, Tamara Nikšić, Suzana Szilner, Dario Vretenar - Melville (NY) : American Institute of Physics (AIP), 2015, 050011-1

ISBN
978-0-7354-1328-3

Skup
Nuclear Structure and Dynamics'15

Mjesto i datum
Portorož, Slovenija, 14.06.2015. - 19.06.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
neutrino mass hierarchy

Sažetak
Recently a hybrid method has been introduced to determine neutrino mass hierarchy by simultaneous measurements of detector responses induced by antineutrino and neutrino fluxes from accretion and cooling phase of type II supernova. The (anti)neutrino-nucleus cross sections for 12C, 16O, 56Fe and 208 Pb are calculated in the framework of relativistic nuclear energy density functional and weak interaction Hamiltonian, while the cross sections for inelastic scattering on free protons in mineral oil and water, p(v⎯⎯e, e+)n p v e e n are obtained using heavy-baryon chiral perturbation theory. The simulations of (anti)neutrino fluxes emitted from a proto-neutron star in a core-collapse supernova include collective and Mikheyev-Smirnov-Wolfenstein effects inside star. It is shown that simultaneous use of ve/v⎯⎯e v e v e detectors with different target material allow to determine the neutrino mass hierarchy from the ratios of ve/v⎯⎯e v e v e induced particle emissions. The hybrid method favors detectors with heavier target nuclei (208 Pb) for the neutrino sector, while for antineutrinos the use of free protons in mineral oil and water is more appropriate.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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