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Kunio Kaneta
순수물리이론 연구단
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Right-handed neutrino dark matter under the B − L gauge interaction

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Title
Right-handed neutrino dark matter under the B − L gauge interaction
Author(s)
Kunio Kaneta; Zhaofeng Kang; Hye-Sung Lee
Publication Date
2017-02
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v.2017, no.2, pp.031 -
Publisher
SPRINGER
Abstract
We study the right-handed neutrino (RHN) dark matter candidate in the minimal U(1)B−L gauge extension of the standard model. The U(1)B−L gauge symmetry offers three RHNs which can address the origin of the neutrino mass, the relic dark matter, and the matter-antimatter asymmetry of the universe. The lightest among the three is taken as the dark matter candidate, which is under the B − L gauge interaction. We investigate various scenarios for this dark matter candidate with the correct relic density by means of the freeze-out or freeze-in mechanism. A viable RHN dark matter mass lies in a wide range including keV to TeV scale. We emphasize the sub-electroweak scale light B − L gauge boson case, and identify the parameter region motivated from the dark matter physics, which can be tested with the planned experiments including the CERN SHiP experiment. © 2017, The Author(s)
URI
http://pr.ibs.re.kr/handle/8788114/3359
DOI
10.1007/JHEP02(2017)031
ISSN
1029-8479
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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