Dark matter at the LHC: EFTs and gauge invariance

Authors :: Bell, Nicole F.
Cai, Yi
Dent, James B.
Leane, Rebecca K.
Weiler, Thomas J.
Source :: Phys. Rev. D 92, 053008 (2015)
Publication Year :: 2015
Abstract: Effective field theory (EFT) formulations of dark matter interactions have proven to be a convenient and popular way to quantify LHC bounds on dark matter. However, some of the non-renormalizable EFT operators considered do not respect the gauge symmetries of the Standard Model. We carefully discuss under what circumstances such operators can arise, and outline potential issues in their interpretation and application.<br />Comment: 5 pages, 4 figures