Standard model coupling strengths

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SUMMARY

The most accurate values of the standard model coupling strengths at the mass of the Z boson can be found through the Particle Data Group (PDG) website at http://pdg.lbl.gov/. The relevant information is located in the summary tables. It is crucial to note that the fine structure constant at the Z boson mass is dependent on the specific renormalization scheme applied, which influences the interpretation of the coupling constants.

PREREQUISITES
  • Understanding of standard model coupling constants
  • Familiarity with the Z boson mass
  • Knowledge of renormalization schemes in quantum field theory
  • Ability to navigate scientific databases, specifically the Particle Data Group
NEXT STEPS
  • Research the Particle Data Group's summary tables for coupling constants
  • Study the implications of different renormalization schemes on coupling constants
  • Learn about the fine structure constant and its relevance in particle physics
  • Explore the relationship between the Z boson mass and standard model parameters
USEFUL FOR

Particle physicists, researchers in quantum field theory, and students studying the standard model of particle physics will benefit from this discussion.

karnten07
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Hi guys,

Where can i find the most up to date (accurate) values of the standard model coupling strengths at the mass of the Z boson? Thanks

Karnten07
 
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The particle data group:

http://pdg.lbl.gov/

I think that what you are looking for is in the summary tables.

(for the fine structure constant, see http://pdg.lbl.gov/2008/reviews/rpp2008-rev-phys-constants.pdf )

EDIT: oops, I misread your question: I thought you asked for the standard coupling constant and the mass of the Z boson.

What you ask for can be calculated from them, but you will depend on the exact renormalisation scheme you use (whatever you call 'the fine structure constant at Z mass' depends on your renormalisation scheme).
 

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