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Dark Matter and Electroweak Symmetry Breaking from SO(10)

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arxiv 1006.3093 v1 pith:IDZHZUY6 submitted 2010-06-15 hep-ph astro-ph.CO

Dark Matter and Electroweak Symmetry Breaking from SO(10)

classification hep-ph astro-ph.CO
keywords breakingdarkmatterelectroweakscalarscalesymmetryalmost
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We consider a minimal model of GUT scalar dark matter (DM) stabilized by the discrete gauge matter parity $P_{X}$ that arises from breaking of $SO(10)$. The dark sector comprises the complex singlet $S$ and the inert doublet $H_{2}$. GUT scale parameters are evaluated to the electroweak scale via Renormalization Group Equations (RGEs). Experimental and theoretical constraints limit the DM mass to the 80 GeV to 2 TeV range. The EW symmetry breaking is radiative and can occur via RGE running and 1-loop matching corrections from integrating out DM. Because the next-to-lightest scalar is almost degenerate with DM, it gives a background free displaced decay vertex at the LHC.

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