What is the significance of global fit in EW precision tests?

[fortuneteller]

I always hear that the "global fit" EW precision test. It seems that I understand it a little. But I am still very clear. Who can shed light on it?

 

[ansgar]

Can you expand a bit, your language is not quite correct.

Do you have some examples on where you have read this?

 

[tom.stoer]

afaik "global fit" means fitting data of different experiments from all over the world

 

[daschaich]

It can also refer to fitting several different experimentally-measured quantities (for example, masses of the W and Z bosons, Z boson partial decay widths and decay asymmetries) to extract parameters that appear in theoretical calculations of all of these quantities (such as the Peskin-Takeuchi S and T parameters).