One of the main purposes of SHiP experiment is to shed light on neutrino mass generation mechanisms like the so-called seesaw. We consider a minimal type-I seesaw neutrino mass mechanism model with two heavy neutral leptons (right-handed or sterile neutrinos) with arbitrary masses. Extremely high active-sterile mixing angle requires a correlation between the phases of the Dirac neutrino couplings. Actual experimental limits on the half-life of neutrinoless double beta decay 0νββ-rate on the active-sterile mixing angle are not significative in constraining the masses or the mixing measurable by SHiP.

Investigating two heavy neutral leptons neutrino seesaw mechanism at SHiP / Chianese, M.; Fiorillo, DAMIANO FRANCESCO GIUSEPPE; Miele, G.; Morisi, S.. - In: INTERNATIONAL JOURNAL OF MODERN PHYSICS A. - ISSN 0217-751X. - 34:8(2019), p. 1950047. [10.1142/S0217751X19500477]

Investigating two heavy neutral leptons neutrino seesaw mechanism at SHiP

Chianese M.;FIORILLO, DAMIANO FRANCESCO GIUSEPPE;Miele G.;Morisi S.
2019

Abstract

One of the main purposes of SHiP experiment is to shed light on neutrino mass generation mechanisms like the so-called seesaw. We consider a minimal type-I seesaw neutrino mass mechanism model with two heavy neutral leptons (right-handed or sterile neutrinos) with arbitrary masses. Extremely high active-sterile mixing angle requires a correlation between the phases of the Dirac neutrino couplings. Actual experimental limits on the half-life of neutrinoless double beta decay 0νββ-rate on the active-sterile mixing angle are not significative in constraining the masses or the mixing measurable by SHiP.
2019
Investigating two heavy neutral leptons neutrino seesaw mechanism at SHiP / Chianese, M.; Fiorillo, DAMIANO FRANCESCO GIUSEPPE; Miele, G.; Morisi, S.. - In: INTERNATIONAL JOURNAL OF MODERN PHYSICS A. - ISSN 0217-751X. - 34:8(2019), p. 1950047. [10.1142/S0217751X19500477]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/754648
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