Talk:Goldstone boson
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IIRC goldstone bosons occur when there is any spontaneously broken global symmetry(other than supersymmetry in which case there is a fermion called a goldstino) JeffBobFrank 03:30, 4 May 2004 (UTC)
I think is a bit confusing the explanation of the explicitly breaking of the symmetry. It should remark that if the explicitly breaking is small, then there also exist (pseudo-)Goldstone bosons which acquire a little mass, due to the small explicitly breaking, but their mass is very small compared to the mass of the other particles in the model, so they are still the lightest degrees of freedom.Villatortilla 02:46, 1 February 2007 (UTC).
I see a contradiction between the following three statements:
- An example of a Goldstone boson is the Higgs boson in the Standard Model. (on this page)
- In general the Goldstone boson is always massless (on this page)
- The Higgs boson itself has mass. As of 2004, the best estimate for the mass is 117 GeV, and the theoretical upper limit is 251 GeV. (on the Higgs boson page)
I suspect the second statement of being incorrect, but I'm no physicist. MatthewWilcox 17:39, 15 Dec 2004 (UTC)
- The first statement is incorrect. The (nonexistent) Goldstone boson has been gauged away. Some physicists like to say "eaten up", but that's misleading. Phys 19:02, 17 Dec 2004 (UTC)
[edit] Rename to Goldstone boson
Usually people say "Goldstone boson" rather than "Nambu-Goldstone boson". It is also supported by Google:
- "Nambu-Goldstone boson" 20k hits
- "Goldstone boson" 136k hits
Therefore, I'd suggest renaming the article to "Goldstone boson", and mentioning "Nambu-Goldstone boson" as an alternative name. Yevgeny Kats 05:14, 24 July 2006 (UTC)
-
- Done. Yevgeny Kats 18:28, 28 July 2006 (UTC)
[edit] Plot of the "mexican hat" potential?
Does anyone have a graphic of the "mexican hat" potential for the example given in the section titled "A Simple Example"? It would make for a clearer discussion, especially the bit at the end where the Goldstone field is described as parameterizing the "curve of possible vacuum states". HEL 02:03, 5 November 2006 (UTC)
- Someone else (not me) has already uploaded the image
. Maliz 19:49, 5 November 2006 (UTC)
