Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

The book "Collider Physics", by barger and Phillips, deals with hadronic W and Z productions, and includes the $K$ factor which represents QCD corrections.

However, when dealing with the hadronic process

$$\bar{u} d \to W \to e \nu$$

and then later with the inclusive

$$AB \to e \nu X,$$ (pg. 248, 255)

it does not include the $K$ factor.

It does, however, again includes the $K$ factor on pg. 260, when dealing with transverse mass.

Is this simply an error or is there a reason for this?

share|cite|improve this question
Welcome to Physics.SE! We have the MathJax rendering engine active on the site, so you can write math in LaTeX. I've done some this one for you. – dmckee Jan 15 '12 at 16:48

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.