Axionic Hot Dark Matter in the Hadronic Axion Window

Details Axionic Hot Dark Matter in the Hadronic Axion Window Axionic Hot Dark Matter in the Hadronic Axion Window

1998-04-15

arxiv.org/abs/hep-ph/9804291v3

Phys.Lett.B440:69-76,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 1 figure, LaTeX2e, epsf.sty. Discussions on Moriyama's proposal to detect solar axions without relying on axion-phot

Scientific paper

10.1016/S0370-2693(98)01091-0

Mixed dark matter scenario can reconcile the COBE data and the observed large scale structure. So far the massive neutrino with a mass of a few eV has been the only discussed candidate for the hot dark matter component. We point out that the hadronic axion in the so-called hadronic axion window, f_a \sim 10^6 GeV, is a perfect candidate as hot dark matter within the mixed dark matter scenario. The current limits on the hadronic axion are summarized. The most promising methods to verify the hadronic axion in this window are the resonant absorption of almost-monochromatic solar axions from M1 transition of the thermally excited $^{57}$Fe in the Sun, and the observation of the ``axion burst'' in water \v{C}erenkov detectors from another supernova.

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