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arXiv · 1110.3037

Hefty MSSM-like light Higgs in extended gauge models

Martin Hirsch·Michal Malinsky·Werner Porod·Laslo Reichert·Florian Staub
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Abstract

It is well known that in the MSSM the lightest neutral Higgs h^0 must be, at the tree level, lighter than the Z boson and that the loop corrections shift this stringent upper bound up to about 130 GeV. Extending the MSSM gauge group in a suitable way, the new Higgs sector dynamics can push the tree-level mass of h^0 well above the tree-level MSSM limit if it couples to the new gauge sector. This effect is further pronounced at the loop level and h^0 masses in the 140 GeV ballpark can be reached easily. We exemplify this for a sample setting with a low-scale U(1)_R x U(1)_B-L gauge symmetry in which neutrino masses can be implemented via the inverse seesaw mechanism.

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Martin Hirsch, Michal Malinsky, Werner Porod, Laslo Reichert, Florian Staub. 2012-03-29. Hefty MSSM-like light Higgs in extended gauge models. https://doi.org/10.1007/jhep02(2012)084

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