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http://hdl.handle.net/20.500.12386/23475
Title: | The contribution of light Majorana neutrinos to neutrinoless double beta decay and cosmology | Authors: | Dell'Oro, S. Marcocci, S. VIEL, MATTEO Vissani, F. |
Issue Date: | 2015 | Journal: | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | Number: | 2015 | Issue: | 12 | First Page: | 023 | Abstract: | Cosmology 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 /> | URI: | http://hdl.handle.net/20.500.12386/23475 | URL: | https://iopscience.iop.org/article/10.1088/1475-7516/2015/12/023 | ISSN: | 1475-7516 | DOI: | 10.1088/1475-7516/2015/12/023 | Bibcode ADS: | 2015JCAP...12..023D | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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1505.02722.pdf | 794.55 kB | Adobe PDF | View/Open | |
Dell'Oro_2015_J._Cosmol._Astropart._Phys._2015_023.pdf | [Administrators only] | 1.33 MB | Adobe PDF |
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