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Title: The contribution of light Majorana neutrinos to neutrinoless double beta decay and cosmology

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. [JCAP 02 (2015) 045] 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.

Authors:
;  [1];  [2]
  1. INFN, Gran Sasso Science Institute, Viale F. Crispi 7, 67100 L'Aquila (Italy)
  2. INAF, Osservatorio Astronomico di Trieste, Via G.B. Tiepolo 11, 34131 Trieste (Italy)
Publication Date:
OSTI Identifier:
22525133
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2015; Journal Issue: 12; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COSMOLOGY; EFFECTIVE MASS; MAJORANA FERMIONS; MAJORANA SPINORS; MEV RANGE; NEUTRINOLESS DOUBLE BETA DECAY; NEUTRINOS; POTENTIALS; PROBES; REST MASS; VISIBLE RADIATION

Citation Formats

Dell'Oro, S., Marcocci, S., Viel, M., and Vissani, F., E-mail: stefano.delloro@gssi.infn.it, E-mail: simone.marcocci@gssi.infn.it, E-mail: viel@oats.inaf.it, E-mail: francesco.vissani@lngs.infn.it. The contribution of light Majorana neutrinos to neutrinoless double beta decay and cosmology. United States: N. p., 2015. Web. doi:10.1088/1475-7516/2015/12/023.
Dell'Oro, S., Marcocci, S., Viel, M., & Vissani, F., E-mail: stefano.delloro@gssi.infn.it, E-mail: simone.marcocci@gssi.infn.it, E-mail: viel@oats.inaf.it, E-mail: francesco.vissani@lngs.infn.it. The contribution of light Majorana neutrinos to neutrinoless double beta decay and cosmology. United States. https://doi.org/10.1088/1475-7516/2015/12/023
Dell'Oro, S., Marcocci, S., Viel, M., and Vissani, F., E-mail: stefano.delloro@gssi.infn.it, E-mail: simone.marcocci@gssi.infn.it, E-mail: viel@oats.inaf.it, E-mail: francesco.vissani@lngs.infn.it. 2015. "The contribution of light Majorana neutrinos to neutrinoless double beta decay and cosmology". United States. https://doi.org/10.1088/1475-7516/2015/12/023.
@article{osti_22525133,
title = {The contribution of light Majorana neutrinos to neutrinoless double beta decay and cosmology},
author = {Dell'Oro, S. and Marcocci, S. and Viel, M. and Vissani, F., E-mail: stefano.delloro@gssi.infn.it, E-mail: simone.marcocci@gssi.infn.it, E-mail: viel@oats.inaf.it, E-mail: francesco.vissani@lngs.infn.it},
abstractNote = {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. [JCAP 02 (2015) 045] 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.},
doi = {10.1088/1475-7516/2015/12/023},
url = {https://www.osti.gov/biblio/22525133}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 12,
volume = 2015,
place = {United States},
year = {Tue Dec 01 00:00:00 EST 2015},
month = {Tue Dec 01 00:00:00 EST 2015}
}