Pure-glue hidden valleys through the Higgs portal

A Pure-Glue Hidden Valley I. States and Decays

It is possible that the standard model is coupled, through new massive charged or colored particles, to a hidden sector whose low energy dynamics is controlled by a pure Yang-Mills theory, with no light matter. Such a sector would have numerous metastable “hidden glueballs” built from the hidden gluons. These states would decay to particles of the standard model. We consider the phenomenology o...

Exploring the Higgs portal

Probing the Higgs portal at the LHC through resonant di-Higgs production

Jose M. No and Michael Ramsey-Musolf Department of Physics and Astronomy, University of Sussex, BN1 9QH Brighton, United Kingdom Amherst Center for Fundamental Interactions Department of Physics, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125, USA (Received 4 December 2013; publi...

Probing Hidden Sector Photons through the Higgs Window

We investigate the possibility that a (light) hidden sector extra photon receives its mass via spontaneous symmetry breaking of a hidden sector Higgs boson, the so-called hidden-Higgs. The hidden-photon can mix with the ordinary photon via a gauge kinetic mixing term. The hidden-Higgs can couple to the Standard Model Higgs via a renormalizable quartic term – sometimes called the Higgs Portal. W...

The glue-ball spectrum of pure percolation

We present a high-precision numerical study of 3D random percolation viewed as a confining gauge theory. Using large correlation matrices among multiform Wilson loops we determine the low-lying masses in various spin channels.