Unification of dark energy and dark matter

Fuminobu Takahashi, T. T. Yanagida

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


We propose a scenario in which dark energy and dark matter are described in a unified manner. The ultralight pseudo-Nambu-Goldstone (pNG) boson, A, naturally explains the observed magnitude of dark energy, while the bosonic supersymmetry partner of the pNG boson, B, can be a dominant component of dark matter. The decay of B into a pair of electron and positron may explain the 511 keV γ ray from the Galactic Center.

Original languageEnglish
Pages (from-to)57-60
Number of pages4
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number2-3
Publication statusPublished - 2006 Apr 6


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