I lack the background to judge whether this will probably be explained by something relatively boring such as a new resonance particle composed of already known fundamental particles (i.e. a new baryon) or maybe an excited state of an already known particle, or something fundamentally new, like supersymmetry, Higgs or something else. This is why I posed the title as a question.
I find it very interesting though that the paper speaks about excluding the "type II two-Higgs-doublet (2HD) model charged Higgs", but I don't know what "type II" there means. The 2HDM is the simplest way you can extend the Standard Model Higgs field (which is what all the Higgs search buzz is about) in to many beyond the standard model theories, like supersymmetry. At least the apparently quite popular minimal supersymmetric model has a 2HD. But the key question is what's type II, and where's my type I?
The resonances and composed particles are used in the calculations, so if this result is true, it would involve new things that are not in the standard model.
We studied only the simple version that has only one Higgs field :(, so I don’t know what type I/II means, but using Google, I found this (see slide #6), that starts with a not very technical introduction: http://www.umich.edu/~mctp/SciPrgPgs/events/2007/kanefest/ha...
Yeah resonances and such would be new, but nothing as exciting as say a charged Higgs. I think they found some previously undiscovered resonance particle at the LHC a few months ago, but it didn't really even make the news outside physics.
Thanks for the link, that was actually really helpful. I wonder why the paper doesn't say anything about if their data would fit a type I or type III charged Higgs. Probably has something to do with whether leptons are considered to be up or down type (?) and thus how the charged Higgses would couple in the given process.
I lack the background to judge whether this will probably be explained by something relatively boring such as a new resonance particle composed of already known fundamental particles (i.e. a new baryon) or maybe an excited state of an already known particle, or something fundamentally new, like supersymmetry, Higgs or something else. This is why I posed the title as a question.
I find it very interesting though that the paper speaks about excluding the "type II two-Higgs-doublet (2HD) model charged Higgs", but I don't know what "type II" there means. The 2HDM is the simplest way you can extend the Standard Model Higgs field (which is what all the Higgs search buzz is about) in to many beyond the standard model theories, like supersymmetry. At least the apparently quite popular minimal supersymmetric model has a 2HD. But the key question is what's type II, and where's my type I?