Recent content by wlln

What's the Rb and Rc problems in electroweak theoy?

You can see the an introdution to quantum field theory (Michael E. Peskin)

But if there was the fourth elment fermion, the SM could avoid the pertubative anomoly?

There are no reasons that why only three-generation fernions exit. But if more element feimions exist, they will lead to inconsistency with the konwn experimental results and severe ultra-divergence.

dear all, I am eager to read the "Gauge Theories of the Strong and Electroweak Interaction" wriiten by Manfred Böhm,Ansgar Denner,Hans Joos. But in my country, there's no the book. If you have the ebook or know the web sites to download it, please send it to my email(wuleihnu@yeah.net). Thank...

thank you very much

Could you explain the meanings of EW global fit,pole mass,gluon fusion? Thank you very much!