Simplified dark matter models with loop effects in direct detection and the constraints from indirect detection and collider search
High Energy Physics - Phenomenology
2020-01-08 v1
Abstract
We reexamine the simplified dark matter (DM) models with fermionic DM particle and spin-0 mediator. The DM-nucleon scattering cross sections of these models are low-momentum suppressed at tree-level, but receive sizable loop-induced spin-independent contribution. We perform one-loop calculation for scalar-type and twist-2 DM-quark operators and complete two-loop calculation for scalar-type DM-gluon operator. By analyzing the loop-level contribution from new operators, we find that future direct detection experiments can be sensitive to a fraction of parameter space. The indirect detection and collider search also provide complementary constraints on these models.
Keywords
Cite
@article{arxiv.1904.03407,
title = {Simplified dark matter models with loop effects in direct detection and the constraints from indirect detection and collider search},
author = {Tong Li and Peiwen Wu},
journal= {arXiv preprint arXiv:1904.03407},
year = {2020}
}
Comments
17 pages, 5 figures