Dell'Oro, S.S.Dell'OroMarcocci, S.S.MarcocciVIEL, MATTEOMATTEOVIELVissani, F.F.Vissani2020-03-232020-03-2320151475-7516http://hdl.handle.net/20.500.12386/23475Cosmology is making impressive progress and it is producing stringent bounds on the sum of the neutrino masses Σ, a parameter of great importance for the current laboratory experiments. In this letter, we exploit the potential relevance of the analysis of Palanque-Delabrouille et al. [<A href="http://dx.doi.org/10.1088/1475-7516/2015/02/045">JCAP 02 (2015) 045</A>] to the neutrinoless double beta decay (0ν β β) search. This analysis indicates small values for the lightest neutrino mass, since the authors find Σ < 84 meV at 1σ C.L., and provides a 1σ preference for the normal hierarchy. The allowed values for the Majorana effective mass, probed by 0ν β β, turn out to be < 75 meV at 3σ C.L. and lower down to less than 02 meV at 1σ C.L. . If this indication is confirmed, the impact on the 0ν β β experiments will be tremendous since the possibility of detecting a signal will be out of the reach of the next generation of experiments. <P />STAMPAenArticle10.1088/1475-7516/2015/12/0232-s2.0-84953721800000367884600023https://iopscience.iop.org/article/10.1088/1475-7516/2015/12/0232015JCAP...12..023DFIS/02 - FISICA TEORICA, MODELLI E METODI MATEMATICIScienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation