2015/01/31 by Núria Vinyoles, Aldo Serenelli, Francesco L. Villante +3 · 3 citations
Physics and Astronomy · #astro-ph.SR
paper · pdf · doi:10.1088/1475-7516/2015/10/015
23 pages, 12 figures
arxiv created 2015/07/29 · arxiv updated 2015/10/14
We present a new statistical analysis that combines helioseismology (sound speed, surface helium and convective radius) and solar neutrino observations (the 8B and 7Be fluxes) to place upper limits to the properties of non standard weakly interacting particles. Our analysis includes theoretical and observational errors, accounts for tensions between input parameters of solar models and can be easily extended to include other observational constraints. We present two applications to test the method: the well studied case of axions and axion-like particles and the more novel case of low mass hidden photons. For axions we obtain an upper limit at 3σ for the axion-photon coupling constant of gaγ < 4.1 ⋅ 10-10 \rmGeV-1. For hidden photons we obtain the most restrictive upper limit available accross a wide range of masses for the product of the kinetic mixing and mass of χm < 1.8 ⋅ 10-12 \rmeV at 3σ. Both cases improve the previous solar constraints based on the Standard Solar Models showing the power of using a global statistical approach.