The PVLAS signal has renewed the interest in light bosons coupled to the electromagnetic field. However, astrophysical bounds coming from the lifetime of the sun and the CAST experiment are seemingly in conflict with this result. We discuss effective models that allow to supress production of axion-like particles in the sun and thereby relax the bounds by some orders of magnitude. This stresses the importance of laboratory searches.
|Number of pages
|Published - 2006
|41st Rencontres de Moriond on Cosmology: Contents and Structures of the Universe 2006 - La Thuile, Italy
Duration: 2006 Mar 18 → 2006 Mar 25
|41st Rencontres de Moriond on Cosmology: Contents and Structures of the Universe 2006
|06/3/18 → 06/3/25