Beyond minimal standard model.

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SUMMARY

The discussion focuses on Higgs models beyond the minimal standard model, specifically examining particle spectra predictions derived from Lamb's balance. Key predictions include particles at 68 GeV (potentially H+), 115 GeV (any Higgs), 175 GeV (possibly degenerated with the Top mass), and 246 GeV (associated with the electroweak Higgs field scale). The conversation also explores the compatibility of these spectra with supersymmetry (SUSY) models and the potential for two doublets or triplet Higgs models to explain the observed phenomena.

PREREQUISITES
  • Understanding of Higgs boson physics
  • Familiarity with supersymmetry (SUSY) models
  • Knowledge of particle spectra and mass predictions
  • Basic grasp of electroweak theory
NEXT STEPS
  • Research the implications of two doublets Higgs models in particle physics
  • Explore the role of triplet Higgs models in explaining particle spectra
  • Investigate the current status of SUSY models in relation to Higgs mass predictions
  • Review experimental results from L3 and ALEPH regarding Higgs boson searches
USEFUL FOR

Particle physicists, researchers in theoretical physics, and anyone interested in advanced Higgs model frameworks and their implications in the context of the standard model and beyond.

arivero
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Has anyone got good pointed in higgs models beyond the minimal? The PDG review is too small for my taste.

From Lamb's balance, I am getting the prediction of the following particle spectra

68 GeV. According L3, it could be H+
Z0 as usual, and W+ as usual, almost
115 GeV. According ALEPH, it could be any Higgs
175 GeV. Degenerated with Top mass? Or just the Top, no new boson after all
246 GeV. It coincides with the EW higgs field scale in the minimal model, but it should appear physically, thus as a particle.

Does this spectrum fit with some SUSY model, using the degeneracy at 175? For complete SUSY breaking, I believe it does not fit because H+ is lower than Z0.

A two doublets higgs model is enough for this spectrum, but is it unique? What about using triplet higgs, or two doublets plus singlet, Zee model etc? I am no risking a predition for a 45-49 GeV particle because it is weaker than the others (and I believe the Z0 experiments have already completely disproved this possibility, am I right here?), but I could try it if it results good for a triplet model or similar.

Alejandro
 
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Just a fast note; I have uploaded in my website the working copy of the http://dftuz.unizar.es/%7Erivero/research/LS9530.pdf about this.
 
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