LHC and Dark Matter Signals of Improved Naturalness

Details LHC and Dark Matter Signals of Improved Naturalness LHC and Dark Matter Signals of Improved Naturalness

2007-06-06

arxiv.org/abs/0706.0918v2

JHEP0711:014,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

33 pages, 13 figures. Minor changes: version to appear in JHEP

Scientific paper

10.1088/1126-6708/2007/11/014

The Standard Model Higgs suffers from the hierarchy problem, typically implying new states within the reach of the LHC. If the Higgs is very heavy (~500 GeV) the states that cutoff the quadratic divergence may be beyond the reach of the LHC. However, in this case precision electroweak data require the Standard Model to be augmented with new states at the electroweak scale. We study a very simple model, with no new colored states, that allows a heavy Higgs whilst remaining consistent with experiments, and yielding the correct dark matter abundance. We investigate the possibilities for its discovery at the LHC and future dark matter detection experiments.

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