2008/07/31 by Paolo Gondolo, Georg Raffelt · 2 citations
Physics and Astronomy · #astro-ph
paper · pdf · doi:10.1103/physrevd.79.107301
published as Phys.Rev.D79:107301,2009 · 4 pages, 1 figure, version accepted by PRD. Results corrected for erroneous axio-electric and Compton cross sections in the literature
arxiv created 2009/04/29 · arxiv updated 2010/04/30
The all-flavor solar neutrino flux measured by the Sudbury Neutrino Observatory (SNO) constrains nonstandard energy losses to less than about 10% of the Sun's photon luminosity, superseding a helioseismological argument and providing new limits on the interaction strength of low-mass particles. For the axion-photon coupling strength we find gaγ< 7E-10 1/GeV. We also derive explicit limits on the Yukawa coupling to electrons of pseudoscalar, scalar and vector bosons with keV-scale masses.