Orateur
Anne-Christine Davis
(University of Cambridge)
Description
Scalar-tensor gravity could help resolve some cosmological mysteries. However such theories give rise to fifth forces, which are not observed in solar system tests of gravity. Hence the coupling between the scalar field and matter must either be very small of the fifth force must be screened. The talk will explain the screen8ng of such scalar fields. It will then look at ways of testing such theories both in the laboratory and with the sun.