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University of Cambridge > Talks.cam > Wednesday HEP-GR Colloquium > [CANCELLED] Screening of fifth forces in scalar tensor theories
[CANCELLED] Screening of fifth forces in scalar tensor theoriesAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Scott Melville. Scalar tensor theories are of interest as possible explanations for the acceleration of the expansion of the universe, and also as a way to understand possible modifications of gravity. However, it is always necessary to explain why, if such a theory describes our universe, a scalar mediated fifth force has not been seen. I will discuss two possible explanations for this: (1) that the underlying physical theory is scale invariant and (2) that non-linearities in the theory act to suppress, or ‘screen’ the fifth force. I will focus, in particular, on the challenges encounter when trying to embed these mechanisms in effective field theories. This talk is part of the Wednesday HEP-GR Colloquium series. This talk is included in these lists:
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