Demir, Durmuş Ali and Karahan, Canan and Sargın, Ozan (2021) Type-3/2 seesaw mechanism. Physical Review D, 104 (7). ISSN 2470-0010 (Print) 2470-0029 (Online)
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PhysRevD.104.075038.pdf
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Official URL: http://dx.doi.org/10.1103/PhysRevD.104.075038
Abstract
The type-I seesaw mechanism provides a natural explanation for tiny neutrino masses. The right-handed neutrino masses it requires are, however, too large to keep the Higgs boson mass at its measured value. We show that vector spinors, singlet leptons that are like right-handed neutrinos, generate tiny neutrino masses naturally through the exchange of spin-1/2 and spin-3/2 components. This one-step seesaw mechanism, which we call the type-3/2 seesaw, keeps the Higgs boson mass unchanged at one loop and gives cause therefore to no fine-tuning problem. If the on-shell vector spinor is a pure spin-3/2 particle, then it becomes a potential candidate for hidden dark matter which gets diluted due only to the expansion of the Universe. The type-3/2 seesaw provides a natural framework for the neutrino, Higgs boson, and dark matter sectors, with overall agreement with current experiments and observations. © 2021 authors.
Item Type: | Article |
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Subjects: | Q Science > QC Physics > QC170 Atomic physics. Quantum theory. |
Divisions: | Faculty of Engineering and Natural Sciences > Basic Sciences > Physics Faculty of Engineering and Natural Sciences |
Depositing User: | Durmuş Ali Demir |
Date Deposited: | 08 Feb 2022 15:41 |
Last Modified: | 27 Aug 2022 15:24 |
URI: | https://research.sabanciuniv.edu/id/eprint/42626 |