Pseudo-Majoron as Dark Matter

Gu, Pei-Hong; Ma, Ernest; Sarkar, Utpal

doi:10.1016/j.physletb.2010.05.012

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Pseudo-Majoron as Dark Matter

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Gu, Pei-Hong
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Citation

Gu, P.-H., Ma, E., & Sarkar, U. (2010). Pseudo-Majoron as Dark Matter. Physics Letters B, 690(2), 145-148. doi:10.1016/j.physletb.2010.05.012.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-7173-F

Abstract

We consider the singlet Majoron model with softly broken lepton number. This model contains three right-handed neutrinos and a singlet scalar besides the standard model fields. The real part of the singlet scalar develops a vacuum expectation value to generate the lepton number violation for seesaw and leptogenesis. The imaginary part of the singlet scalar becomes a massive pseudo-Majoron to be a dark matter candidate with testability by colliders, direct detection experiments and neutrino observations.