Speaker
Hong-Jian He
Description
Theories of quantum gravity predict spacetime dimensions to
become reduced at high energies, a striking phenomenon
known as spontaneous dimensional reduction (SDR). We
construct an effective electroweak theory based on the
minimal Higgsless standard model (SM) and incorporate the
TeV-scale SDR, which is renormalizable and unitary. We
further study an extension to the Higgsful SM under the TeV-
scale SDR and with induced anomalous Higgs couplings
to weak gauge bosons, which provides a natural solution to
the hierarchy problem.
We demonstrate that both the Higgsless and Higgsful SMs
predict unitary longitudinal WW scattering, and can be
discriminated from the conventional 4d SM by the WW
scattering experiments at the CERN LHC.
