Sterile neutrino dark matter with dipole interaction


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PhysRevD.105.015016.pdf

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/84368

Title:	Sterile neutrino dark matter with dipole interaction
Authors:	Cho, Wonsub Browse this author
	Choi, Ki-Young Browse this author
	Seto, Osamu Browse this author →KAKEN DB
Issue Date:	13-Jan-2022
Publisher:	American Physical Society (APS)
Journal Title:	Physical Review D
Volume:	105
Issue:	1
Start Page:	15016-1
End Page:	15016-12
Publisher DOI:	10.1103/PhysRevD.105.015016
Abstract:	We consider the possibility of the lightest sterile neutrino dark matter which has dipole interaction with heavier sterile neutrinos. The lifetime can be long enough to be a dark matter candidate without violating other constraints and the correct amount of relic abundance can be produced in the early Universe. We find that a sterile neutrino with the mass of around MeV and the dimension-five nonrenormalizable dipole interaction suppressed by ?5 greater than or similar to 1015 GeV can be a good candidate of dark matter, while heavier sterile neutrinos with masses of the order of GeV can explain the active neutrino oscillations.
Rights:	https://creativecommons.org/licenses/by/4.0/
Type:	article
URI:	http://hdl.handle.net/2115/84368
Appears in Collections:	高等教育推進機構 (Institute for the Advancement of Higher Education) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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