Sources for Standard Model Coupling Constants at 91 GeV

[LeBAEM]

Dear guys,

first of all I want to appologize if this question was already answered in this forum.
I tried the search enginge and did not get the right results.

According to the Wikipedia article (http://en.wikipedia.org/wiki/Standard_Model#Theoretical_aspects) about the SM, the values at 91 GeV are

g(U1) = 0.357
g(SU2) = 0.652

(the table says "minimial substraction scheme" was used for renomalization)

As I am a beginner and do not have the knowledge to do the renormalization calculations on my own, I am looking for a source, which I can quote .. (and afaik the authors of the wiki-article don't quote their source). As I am a little bit under time pressure, I would be very very glad, if someone would know a source.

I tried google, arxiv etc. but all I find are the LEP measurements from which those coupling constants could be calculated .. but no paper which did this ..

 

[AndyW]

Dear poster,

Thank you for your question. The values for the coupling constants at 91 GeV in the Standard Model are indeed as stated in the Wikipedia article. The minimal subtraction scheme is a commonly used method for renormalization in particle physics calculations.

As for a source to quote, I would recommend the original paper by Glashow, Weinberg, and Salam titled "The Unification of Electromagnetic and Weak Interactions" published in Physical Review Letters in 1967. This paper outlines the theoretical framework for the Standard Model and includes the values for the coupling constants at 91 GeV.

Additionally, the book "The Standard Model of Particle Physics" by Donoghue, Golowich, and Holstein also provides a comprehensive overview of the Standard Model and its theoretical aspects. Chapter 4 specifically discusses the renormalization scheme used in calculating the coupling constants.

I hope this helps and please let me know if you have any further questions. Good luck with your research!