Timeline for Stablising the Higgs without SUSY
Current License: CC BY-SA 3.0
6 events
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| Oct 13, 2011 at 7:43 | comment | added | James | Thanks, that's what I suspected. It was on my mind, since the LHC seems to be putting the squeeze on vanilla SUSY. Now I need to go off and find out what it's telling us about technicolour. | |
| Oct 13, 2011 at 6:33 | comment | added | Ron Maimon | @James: So you want to protect a scalar to be massless without SUSY? This is difficult--- the only way I can think of is to make the Higgs a Goldstone boson. If it is a Goldstone boson of a broken chiral symmetry, you're back in technicolor land. If you break something else at high energies, maybe you can get a good Higgs. I believe this is the subject of "little Higgs" theories, but these are usually in the context of large extra dimensions, and I do not read large-extra-dimension papers on principle, but perhaps one should make an exception for the purpose of answering these questions. | |
| Oct 13, 2011 at 6:29 | comment | added | Ron Maimon | @genneth: I don't know top-condensate models, I never took them seriously enough to read the papers, but you need a new force to bind the tops together and condense them, and then why doesn't it act on other generations? It seems inelegant to break generation symmetries. I think it is best to wait a few months--- we will definitely know the answer. | |
| Oct 12, 2011 at 14:53 | comment | added | genneth | @RonMaimon: Speaking as someone not in HEP, I've always wondered about resolutions to the Higgs fine tuning without SUSY. Do you have any comments on things like top-condensate? It seems a bit too coincidental that top-higgs (phenomenological) coupling is about unity. | |
| Oct 12, 2011 at 14:17 | comment | added | James | Thanks (I didn't really mean that RS theories "stabilise" the Higgs, I just wanted to head off answers that might go in that direction). With regard to technicolour, I am told that an SM Higgs should be distinguishable from technicolour at the LHC (indeed, shouldn't we already be seeing technipions and their ilk appearing if it were true?), so I wanted to know if there were models with a genuinely elementary scalar Higgs that isn't troubled by hierarchy. | |
| Oct 12, 2011 at 7:08 | history | answered | Ron Maimon | CC BY-SA 3.0 |