6533b86cfe1ef96bd12c8355
RESEARCH PRODUCT
Hefty MSSM-like light Higgs in extended gauge models
Michal MalinskyFlorian StaubMartin S. HirschWerner PorodLaslo Reichertsubject
PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyFOS: Physical sciencesFísicaGauge (firearms)01 natural sciencesUpper and lower boundsHiggs sectorHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)High Energy Physics - PhenomenologySeesaw mechanismHigh Energy Physics - Phenomenology (hep-ph)Gauge group0103 physical sciencesHiggs bosonHigh Energy Physics::ExperimentNeutrino010306 general physicsGauge symmetrydescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-10-13 |