@Article{Arbelaez_etal2021,
author="Arbelaez, C.
and Dib, C.
and Monsalvez-Pozo, K.
and Schmidt, I.",
title="Quasi-Dirac neutrinos in the linear seesaw model",
journal="Journal of High Energy Physics",
year="2021",
publisher="Springer",
volume="07",
number="7",
pages="154--22pp",
optkeywords="Beyond Standard Model; Neutrino Physics",
abstract="We implement a minimal linear seesaw model (LSM) for addressing the Quasi-Dirac (QD) behaviour of heavy neutrinos, focusing on the mass regime of M-N less than or similar to M-W. Here we show that for relatively low neutrino masses, covering the few GeV range, the same-sign to opposite-sign dilepton ratio, R-ll, can be anywhere between 0 and 1, thus signaling a Quasi-Dirac regime. Particular values of R-ll are controlled by the width of the QD neutrino and its mass splitting, the latter being equal to the light-neutrino mass m(nu) in the LSM scenario. The current upper bound on m(nu 1) together with the projected sensitivities of current and future |U-N l|(2) experimental measurements, set stringent constraints on our low-scale QD mass regime. Some experimental prospects of testing the model by LHC displaced vertex searches are also discussed.",
optnote="WOS:000677622200005",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4930), last updated on Fri, 13 Aug 2021 09:54:26 +0000",
issn="1029-8479",
doi="10.1007/JHEP07(2021)154",
opturl="https://arxiv.org/abs/2104.08023",
opturl="https://doi.org/10.1007/JHEP07(2021)154",
language="English"
}