Searching for the Higgs Field: 95% Confidence of Existence

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Discussion Overview

The discussion revolves around the search for the Higgs Field, particularly focusing on its theoretical implications and the confidence level regarding its existence as of 2005. Participants explore the historical context, theoretical frameworks, and the significance of discovering the Higgs Field in relation to the Standard Model of particle physics.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants express that there is a 95% confidence in the existence of the Higgs Field, despite it not being observed by the end of 2005.
  • Historical references are made to significant papers by Steven Weinberg and others regarding the electroweak theory and the role of the Higgs Field in mass generation.
  • There is a discussion about the expected mass of the Higgs boson, with some participants suggesting values around 115 GeV/c², while others propose 250 GeV/c².
  • Concerns are raised about the concept of renormalizability, with some participants questioning its justification and others defending its necessity in theoretical physics.
  • Some participants mention alternative models that do not require a Higgs boson or propose heavier versions of the Higgs, indicating a diversity of theoretical perspectives.
  • There is a recognition of the importance of scalar fields in theories of mass, with references to dilatons in string theory and other models.

Areas of Agreement / Disagreement

Participants express a mix of agreement on the significance of the Higgs Field and its theoretical implications, while also presenting competing views regarding its expected properties and the validity of renormalization. The discussion remains unresolved on several technical points and theoretical interpretations.

Contextual Notes

Limitations include the dependence on specific theoretical frameworks and unresolved questions regarding the mass of the Higgs boson and the justification for renormalization techniques. The discussion reflects a range of assumptions and interpretations that are not universally accepted.

  • #31
As far as your other question. If we don't find the Higgs at say the LHC, I lose faith in SUSY first and foremost. And well, things become interesting.

There are some rather contrived models that have Higgs like scalar fields at much higher energies, but they tend to either introduce far too much finetuning, or they add so many new fields it just confuses me to death (and my belief in theories that I don't understand is identically zero)

Now, do I lose faith in the standard model and some of the theoretical underpinnings of field theory? Tough question, I would certainly think about it a little bit (i'd imagine everyone would sanity check themselves), its kinda hard to unlearn two decades of research that we've internalized. Fortunately I don't work in that field, so I'd imagine my job is intact if I merely speculate about some of the rather hard to belief alternatives out there.
 
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  • #32
Haelfix said:
Fortunately I don't work in that field, so I'd imagine my job is intact if I merely speculate about some of the rather hard to belief alternatives out there.
Me neither and I have never really payed too much attention to QFT (since it seems to me to be more fundamentally flawed). :smile: The only comment I have is when you say that renormalizable theories are more likely to appear in nature than nonrenormalizable ones. My point of view is that this does not matter too much (if we probe any theory at sufficiently small energies the nonrenormalizable terms are not important anyway) - and I do not want to take the continuum limit in the first place. You could argue against this and say that I must construct then a criterion which picks out my bare coupling constants and rules out all other terms I would add during renormalization but - in case you are only worried about constructing theories which fit observation - why care about it ?

Cheers,

Careful
 
  • #33
Haelfix said:
As far as your other question. If we don't find the Higgs at say the LHC, I lose faith in SUSY first and foremost. And well, things become interesting.

Now, do I lose faith in the standard model and some of the theoretical underpinnings of field theory? Tough question, I would certainly think about it a little bit (i'd imagine everyone would sanity check themselves), its kinda hard to unlearn two decades of research that we've internalized. Fortunately I don't work in that field, so I'd imagine my job is intact if I merely speculate about some of the rather hard to belief alternatives out there.

You have my sympathy,Haelfix. I have had to unlearn a lot of physics twice, so a third time wouldn't be too hard----- and I think it inevitable in the next decade. May I might live to see it!

cheers

Ernie
 
  • #34
Gentelmen/ladies,

I did not mean to cause this, I do not have the luxury to participate in this as I would like.

Bottom line is, dealing with the 'renormaliztion group' it is just a way of re-calibrating your search, that was so aptly said above ^^, and in this case the Higgs. You cannot fudge the factor in or it will not go unnoticed in the physics community.

Yes, to the reply dealing with our degrees and professors, I was also fortunate to have many professors that would tell us the same, 'stay of the box' or do not be afraid to create a workable mathematical approach to a problem.

Please excuse me on this generalization statement dealing with wonderful teachers and mentors. Well, most of them?

I just hope that data will give us the missing piece of the puzzle dealing with the Standard Model.

There was one statement about looking for the Higgs that caught my eye. Yes, but 50 years ago we did not have the LHC coming on line.

Happy New Year,
y
 
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