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Can we measure the neutrino mass hierarchy in the sky?

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Can we measure the neutrino mass hierarchy in the sky?

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dc.contributor.author Jiménez, Raúl
dc.contributor.author Kitching, Thomas
dc.contributor.author Peña Garay, Carlos
dc.contributor.author Verde, Licia
dc.date.accessioned 2014-11-03T10:56:16Z
dc.date.available 2014-11-03T10:56:16Z
dc.date.issued 2010
dc.identifier.citation Jiménez, Raúl Kitching, Thomas Peña Garay, Carlos Verde, Licia 2010 Can we measure the neutrino mass hierarchy in the sky? Journal Of Cosmology And Astroparticle Physics 2010 5 035
dc.identifier.uri http://hdl.handle.net/10550/39530
dc.description.abstract Cosmological probes are steadily reducing the total neutrino mass window, resulting in constraints on the neutrino-mass degeneracy as the most significant outcome. In this work we explore the discovery potential of cosmological probes to constrain the neutrino hierarchy, and point out some subtleties that could yield spurious claims of detection. This has an important implication for next generation of double beta decay experiments, that will be able to achieve a positive signal in the case of degenerate or inverted hierarchy of Majorana neutrinos. We find that cosmological experiments that nearly cover the whole sky could in principle distinguish the neutrino hierarchy by yielding 'substantial' evidence for one scenario over the another, via precise measurements of the shape of the matter power spectrum from large scale structure and weak gravitational lensing.
dc.language.iso eng
dc.relation.ispartof Journal Of Cosmology And Astroparticle Physics, 2010, vol. 2010, num. 5, p. 035
dc.subject Astronomia
dc.title Can we measure the neutrino mass hierarchy in the sky?
dc.type journal article es_ES
dc.date.updated 2014-11-03T10:56:16Z
dc.identifier.doi 10.1088/1475-7516/2010/05/035
dc.identifier.idgrec 097432
dc.rights.accessRights open access es_ES

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