What is this H+ particle, is it related to the Higgs Bosons and is it proven?

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SUMMARY

The discussion centers on the H+ particle, which is associated with the decay of top quarks in particle physics. Specifically, the top quark decays into an H+ particle and a bottom quark, while the anti top quark decays into a weak boson and an anti bottom quark. The H+ particle is linked to charged Higgs bosons in supersymmetric extensions of the Standard Model and two-Higgs doublet models. The conversation also touches on the distinction between theoretical Feynman diagrams and experimental validation, emphasizing that the existence of the Higgs boson is not definitively proven through these diagrams alone.

PREREQUISITES
  • Understanding of particle decay processes, particularly top and anti top quark decays.
  • Familiarity with Feynman diagrams and their role in particle physics.
  • Knowledge of the Standard Model and its extensions, including supersymmetry.
  • Basic concepts of Higgs bosons and their variants, such as charged Higgs bosons.
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  • Research the properties and implications of charged Higgs bosons in supersymmetric models.
  • Explore the experimental evidence for the Higgs boson and its significance in particle physics.
  • Study the role of Feynman diagrams in theoretical physics and their limitations in representing physical reality.
  • Investigate the decay processes of top quarks and their relevance to the Standard Model.
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HarryDaniels
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I am currently looking at a diagram of a top and anti top decay. The anti top decays into a weak boson and an anti bottom and the weak then decays into an electron and electron anti-neutrino. On the other side the top decays into a H+ particle and a bottom.

What is this H+ particle, is it related to the Higgs Bosons and is it proven?
 
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HarryDaniels said:
I am currently looking at a diagram

Where?
 
Doesnt matter now, it was a google picture which wasnt objective, sorry for the post.
 
H+ particle associates for me with a .. hydrogen ion - basically a proton..
 
Thanks.
And I meant a tauon anti-tauon.
 
The charged Higgs boson, in supersymmetric extensions to the standard model and two-Higgs doublet models.
 
Does that mean that the Higgs boson is proven?
 
HarryDaniels said:
Does that mean that the Higgs boson is proven?

what do you mean "proven"?

There is no connection between Feynman diagrams and what is seen in experiments... I can make up any model and thus Feynman diagrams I want... what makes you think that just because there is a certain Feynman diagram that must reflect the physical reality?
 
HarryDaniels said:
And I meant a tauon anti-tauon.
tau decays to b,H? There are at least two things wrong with that, I think.
 
  • #10
ansgar said:
what do you mean "proven"?

There is no connection between Feynman diagrams and what is seen in experiments... I can make up any model and thus Feynman diagrams I want... what makes you think that just because there is a certain Feynman diagram that must reflect the physical reality?

one of the rules of Feynman diagrams is that it has to represent a possible process that can occur in nature.
 
  • #11
HarryDaniels said:
I am currently looking at a diagram of a top and anti top decay. The anti top decays into a weak boson and an anti bottom and the weak then decays into an electron and electron anti-neutrino. On the other side the top decays into a H+ particle and a bottom.

What is this H+ particle, is it related to the Higgs Bosons and is it proven?
in one of my books, i have that t decays to a W which then decays into an anti muon and muon neutrino.
 

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