Stellar limits on keV pseudoscalars

Details Stellar limits on keV pseudoscalars Stellar limits on keV pseudoscalars

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phlb..218...79c&link_type=abstract

Physics Letters B, Volume 218, Issue 1, p. 79-83.

Physics

13

Scientific paper

Based on the decay rate of orthopositronium and ge-2 for the electron, Samuel has suggested the existence of a new pseudoscalar with coupling to electrons α'= 2×10-8 and mass less than 5 keV. We demonstrate that this contradicts stellar models of the sun and horizontal branch stars. For the coupling required to explain ge-2 and positronium, we demonstrate that a mass of at least 34 keV (175 keV) is required to avoid running models of the sun (horizontal branch stars).
On leave of absence from LAPP and from Universite de Savoie, F-73000 Chambery France

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