A Pure-Glue Hidden Valley I. States and Decays

Details A Pure-Glue Hidden Valley I. States and Decays A Pure-Glue Hidden Valley I. States and Decays

2009-03-05

arxiv.org/abs/0903.0883v1

JHEP 0907:055,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

34 pages, 4 figures

Scientific paper

10.1088/1126-6708/2009/07/055

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 of this scenario, and find formulas for the lifetimes and branching ratios of the most important of these states. The dominant decays are to two standard model gauge bosons, or by radiative decays with photon emission, leading to jet- and photon-rich signals.

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