Axion constraints from white dwarf cooling times

Details Axion constraints from white dwarf cooling times Axion constraints from white dwarf cooling times

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phlb..166..402r&link_type=abstract

Physics Letters B, Volume 166, Issue 4, p. 402-406.

Physics

55

Scientific paper

Hypothetical, pseudoscalar particles would be abundantly emitted from the interior of white dwarfs through bremsstrahlung processes. These stars would then rapidly cool. From the observed number of hot degenerates we find a new bound on the Yukawa coupling to electrons of g < 4 × 10-13. For ``invisible axions'' this translates into a new bound on the Peccei-Quinn scale of v > 1 × 109 GeV, corresponding to ma < 3 × 10-2 eV.

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