Is MSSM Higgs the Key to Understanding the Universe?

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Discussion Overview

The discussion revolves around the implications of the MSSM (Minimal Supersymmetric Standard Model) Higgs boson and its potential significance in understanding fundamental aspects of the universe. Participants explore the implications of reported Higgs mass values, the validity of split supersymmetry, and the interpretation of experimental data related to Higgs detection.

Discussion Character

  • Debate/contested
  • Technical explanation
  • Exploratory

Main Points Raised

  • Some participants reference a 21-sigma excess related to the MSSM Higgs, questioning its significance and reliability.
  • There is skepticism about the reported Higgs mass of 160 GeV, with one participant suggesting it does not align with expectations of supersymmetry.
  • Concerns are raised about the implications of a heavier Higgs mass, such as 175 GeV, which some argue is predicted by split supersymmetry but is criticized for failing to address the hierarchy problem.
  • One participant expresses doubt about the reliability of experimental bumps, suggesting that they may not indicate significant findings without theoretical backing.
  • Another participant notes a discrepancy in reports, highlighting that while one group reports a bump, another reports a deficit, indicating conflicting interpretations of the data.

Areas of Agreement / Disagreement

Participants express differing views on the validity of split supersymmetry and the interpretation of experimental results, indicating that multiple competing perspectives remain without consensus.

Contextual Notes

Participants highlight limitations in the theoretical predictions regarding Higgs mass and the implications of experimental findings, suggesting that the discussion is influenced by varying interpretations of data and theoretical frameworks.

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160 GeV ? Mmm. Sounds not so super-symmetric :biggrin:
 
See comments at Lubos Motl's blog for more on this story.
I'm far from an expert, but here's my take:
Bumps like this two sigma thing come and go all the time and mean nothing.
Most of the experts seem to expect a light Higgs,
but a heavy Higgs, eg near 175 Gev,
is predicted by split supersymmetry,
if I understand the experts correctly.
 
Split supersymmetry is junk and everyone knows it. It basically abandons any hope of solving the hierarchy problem or naturallness problems and goes with other aesthetic criteria. It explains nothing, and you can move the Higgs mass around a lot.

If they see a Higgs at 175 GeV, and nothing else, the favored models would still likely be a little less minimal SuSy offspring or something a little more contrived (add more degrees of freedom, crank crank crank). One of the nasty consequences is the little hierarchy problem tends to become much more severe and everyone will scramble for a solution to that.
 
I think that if theory doesn't tell you where your bump is supposed to be, you should look be able to find it pretty much wherever and whenever you want to. If an experimentalists' charts don't have bumps then they don't have the gain turned up enough.

By the way, did you notice the url chosen? "21-sigma" would be a bit more than a bump.

[edit]It appears that D_0 is reporting a deficit where the other guys are reporting a bump.[/edit]
 
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