Supersymmetry - current status

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Discussion Overview

The discussion centers on the current status of supersymmetry (SUSY) in the context of recent experimental results from the Large Hadron Collider (LHC) and other experiments. Participants explore the implications of these findings on the viability of SUSY as a theoretical framework in particle physics.

Discussion Character

  • Debate/contested
  • Exploratory
  • Technical explanation

Main Points Raised

  • Some participants express concern about the lack of evidence for SUSY from the LHC and LUX, questioning how much longer the model can be considered viable without experimental support.
  • Others note that while SUSY cannot be entirely excluded, the absence of findings weakens the theoretical arguments supporting it, particularly for simpler models.
  • There is a discussion about the potential impact on funding for particle physics if SUSY particles are not discovered, with some participants suggesting that funding may be cut if no evidence is found.
  • One participant speculates on the longevity of the SUSY model, suggesting that certain supersymmetric models could be pushed to extreme scales, potentially beyond current experimental reach.
  • Concerns are raised about the future of particle physics research and the motivations for upcoming collider projects if SUSY remains unproven.

Areas of Agreement / Disagreement

Participants generally agree that the lack of experimental evidence for SUSY is concerning, but there is no consensus on when or if the model should be considered "dead." Some believe it can be sustained indefinitely under certain theoretical conditions, while others express skepticism about its future viability.

Contextual Notes

The discussion reflects a range of opinions on the implications of current experimental results for SUSY, highlighting the uncertainty surrounding the model's future and the potential consequences for funding and research directions in particle physics.

jirka.win
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I wanted to ask wheter there is any progress when it comes to SUSY.
Since LHC didn't find any superpartners and LUX found no neutralinos how much space does SUSY have left? I mean it can be fine tuned but that can't be done forever right?

Or is there something I don't know that improves SUSYs chances?
 
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I wanted to ask wheter there is any progress when it comes to SUSY.
Just more exclusions and better limits.

SUSY as a whole cannot be excluded by the LHC - but if the LHC does not find anything, the theoretical arguments for it get significantly weaker. Even now, some of the easiest models get problematic.
 
mfb said:
Just more exclusions and better limits.

SUSY as a whole cannot be excluded by the LHC - but if the LHC does not find anything, the theoretical arguments for it get significantly weaker. Even now, some of the easiest models get problematic.

Yeah I read several papers and I'm getting a little worried.
Not because I have some sort of emotional connection to that model but because if nothing is found funding for particle physics will probably get cut.

I just want to ask. If SUSY particles don't show up, at what point will theoretical physicist consider the model dead? Since some supersymmetric models can be pushed really far (only Kardashev civilization II would be able to rule them out).
 
jirka.win said:
Yeah I read several papers and I'm getting a little worried.
Not because I have some sort of emotional connection to that model but because if nothing is found funding for particle physics will probably get cut.
That's certainly an issue. I guess the ILC does not need SUSY particles to get funded as it will be the first lepton collider to study Higgs and Top, but anything beyond that does not have a good physics motivation so far.
The planned Chinese Higgs factory (circular e+e- collider) could be interesting as well, as Chinese funding methods look a bit different.

I just want to ask. If SUSY particles don't show up, at what point will theoretical physicist consider the model dead?
My guess: Never.
Since some supersymmetric models can be pushed really far (only Kardashev civilization II would be able to rule them out).
I'm sure you can push the scale even beyond the GUT scale in some way... :D.
 

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