http://arxiv.org/abs/1605.04043
In this work, we propose different models of extended theories of gravity, which are minimally coupled to the SM fields, to explain the possibility of a dark matter (DM) candidate, without ad-hoc additions to the Standard Model (SM). We modify the gravity sector by allowing quantum corrections motivated from local $f(R)$ gravity, and non-minimally coupled gravity with SM sector and dilaton field. Using an effective field theory (EFT) framework, we constrain the scale of the EFT and DM mass. We consider two cases-Light DM (LDM) and Heavy DM (HDM), and deduce upper bounds on the DM annihilation cross section to SM particles.
S. Choudhury, M. Sen and S. Sadhukhan
Mon, 16 May 16
16/48
Comments: 2 pages, 3 figures, “Presented at the 52nd Winter School of Theoretical Physics (Ladek Zdroj, Poland). To appear in a special issue of Acta Physica Polonica B”
You must be logged in to post a comment.