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dc.contributor.authorVale, D.
dc.contributor.authorRauscher, T.
dc.contributor.authorPaar, N.
dc.date.accessioned2016-04-27T16:07:50Z
dc.date.available2016-04-27T16:07:50Z
dc.date.issued2016-02-03
dc.identifier.citationVale , D , Rauscher , T & Paar , N 2016 , ' Hybrid method to resolve the neutrino mass hierarchy by supernova (anti)neutrino induced reactions ' , Journal of Cosmology and Astroparticle Physics , vol. 2016 , no. 2 , 007 . https://doi.org/10.1088/1475-7516/2016/02/007
dc.identifier.urihttp://hdl.handle.net/2299/17157
dc.description.abstractWe introduce a hybrid method to determine the neutrino mass hierarchy by simultaneous measurements of responses of at least two detectors to antineutrino and neutrino fluxes from accretion and cooling phases of core-collapse supernovae. The (anti)neutrino-nucleus cross sections for 56Fe and 208Pb are calculated in the framework of the relativistic nuclear energy density functional and weak interaction Hamiltonian, while the cross sections for inelastic scattering on free protons p(v¯e,e+)n are obtained using heavy-baryon chiral perturbation theory. The modelling of (anti)neutrino fluxes emitted from a protoneutron star in a core-collapse supernova include collective and Mikheyev-Smirnov-Wolfenstein effects inside the exploding star. The particle emission rates from the elementary decay modes of the daughter nuclei are calculated for normal and inverted neutrino mass hierarchy. It is shown that simultaneous use of (anti)neutrino detectors with different target material allows to determine the neutrino mass hierarchy from the ratios of ve- and v¯e-induced particle emissions. This hybrid method favors neutrinos from the supernova cooling phase and the implementation of detectors with heavier target nuclei (208Pb) for the neutrino sector, while for antineutrinos the use of free protons in mineral oil or water is the appropriate choice.en
dc.format.extent449946
dc.language.isoeng
dc.relation.ispartofJournal of Cosmology and Astroparticle Physics
dc.subjectneutrino detectors
dc.subjectneutrino properties
dc.titleHybrid method to resolve the neutrino mass hierarchy by supernova (anti)neutrino induced reactionsen
dc.contributor.institutionCentre for Astrophysics Research (CAR)
dc.description.statusPeer reviewed
rioxxterms.versionofrecord10.1088/1475-7516/2016/02/007
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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