Does Not Seeing a Little Higgs at Tevatron Rule Out SUSY for EW Scale Breaking?

[ensabah6]

To date, the little higgs implied by some SUSY models requires higgs of energies less than 130 GEV, which Fermilab's Tevatron has not yet seen.

These models do help explain EW breaking, however,

If SUSY explains E-w scale breaking, does it require a little Higgs at Tevatron energies?

I recognize it is only 95% so there is still a 5% chance it should see it, but does not seeing a little Higgs at Tevatron rule out SUSY as an explanation of EW scale breaking, with 95% confidence?

 

[BenTheMan]

Do you mean little Higgs or the lightest higgs in the MSSM?

Either way, I don't think that the Tevatron has reached the LEP limit of 114.4 GeV yet. And I don't think that 130 GeV is reachable---I think they expect to reach 115 or 120 GeV by the time the thing shuts down and they analyze all of the data. (I'm just recalling numbers here, but I think this is right.)

 

[Entropia]

I cannot definitively say whether or not SUSY is ruled out as an explanation for EW scale breaking based on the lack of a little Higgs at Tevatron energies. While the Tevatron has not yet seen a little Higgs at the required energies, it is important to remember that scientific discoveries and theories are constantly evolving and there may be other factors at play that we have not yet considered. Additionally, the 5% chance that the Tevatron could still observe a little Higgs should not be discounted.

Furthermore, there are other experiments and observations that support the existence of SUSY and its role in explaining EW scale breaking. For example, the Large Hadron Collider (LHC) at CERN has provided evidence for the existence of supersymmetric particles, albeit at higher energies than those required for the little Higgs. Additionally, the presence of dark matter, which is a key prediction of SUSY models, has been observed through various astronomical measurements.

Therefore, while the lack of a little Higgs at Tevatron energies may suggest that some SUSY models may not be accurate, it does not necessarily rule out the entire concept of SUSY as an explanation for EW scale breaking. Further research and experiments, such as those at the LHC, are needed to fully understand the role of SUSY in our understanding of the fundamental forces of nature. It is important to keep an open mind and continue to explore all possibilities in order to advance our knowledge and understanding of the universe.