Dark side of the seesaw
Dark side of the seesaw
In an attempt to unfold (if any) a possible connection between two apparently uncorrelated sectors, namely neutrino and dark matter, we consider the type-I seesaw and a fermion singlet dark matter to start with. Our construction suggests that there exists a scalar field mediator between these two sectors whose vacuum expectation value not only generates the mass of the dark matter, but also takes part in the neutrino mass generation. While the choice of Z4 symmetry allows us to establish the framework, the vacuum expectation value of the mediator field breaks Z4 to a remnant Z2, that is responsible to keep dark matter stable. Therefore, the observed light neutrino masses and relic abundance constraint on the dark matter, allows us to predict the heavy seesaw scale as illustrated in this paper.The methodology to connect dark matter and neutrino sector, as introduced here, is a generic one and can be applied to other possible neutrino mass generation mechanism and different dark matter candidate(s).
Beyond Standard Model, Neutrino Physics
Bhattacharya, Subhaditya
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de Medeiros Varzielas, Ivo
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Karmakar, Biswajit
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King, Stephen F.
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Sil, Arunansu
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December 2018
Bhattacharya, Subhaditya
76974b3d-a653-4fde-9f48-5c6742d78057
de Medeiros Varzielas, Ivo
9e2b1443-1449-4687-8d03-2f67275730c0
Karmakar, Biswajit
09ffe3a1-ca68-4511-8c5e-e1e61fbeb2c8
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Sil, Arunansu
c8540093-53e2-4c35-84f3-4567ec9899ba
Bhattacharya, Subhaditya, de Medeiros Varzielas, Ivo, Karmakar, Biswajit, King, Stephen F. and Sil, Arunansu
(2018)
Dark side of the seesaw.
Journal of High Energy Physics, 2018 (12), [7].
(doi:10.1007/JHEP12(2018)007).
Abstract
In an attempt to unfold (if any) a possible connection between two apparently uncorrelated sectors, namely neutrino and dark matter, we consider the type-I seesaw and a fermion singlet dark matter to start with. Our construction suggests that there exists a scalar field mediator between these two sectors whose vacuum expectation value not only generates the mass of the dark matter, but also takes part in the neutrino mass generation. While the choice of Z4 symmetry allows us to establish the framework, the vacuum expectation value of the mediator field breaks Z4 to a remnant Z2, that is responsible to keep dark matter stable. Therefore, the observed light neutrino masses and relic abundance constraint on the dark matter, allows us to predict the heavy seesaw scale as illustrated in this paper.The methodology to connect dark matter and neutrino sector, as introduced here, is a generic one and can be applied to other possible neutrino mass generation mechanism and different dark matter candidate(s).
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Bhattacharya2018_Article_DarkSideOfTheSeesaw
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Accepted/In Press date: 20 November 2018
e-pub ahead of print date: 3 December 2018
Published date: December 2018
Keywords:
Beyond Standard Model, Neutrino Physics
Identifiers
Local EPrints ID: 427194
URI: http://eprints.soton.ac.uk/id/eprint/427194
ISSN: 1126-6708
PURE UUID: 97166056-cff8-4468-a6ad-f5cc247be4e5
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Date deposited: 07 Jan 2019 17:30
Last modified: 17 Mar 2024 12:17
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Contributors
Author:
Subhaditya Bhattacharya
Author:
Ivo de Medeiros Varzielas
Author:
Biswajit Karmakar
Author:
Arunansu Sil
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