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

I did a Standard Model calculation and I want to compare my answer to a measured value.

Does anyone know the literature value for the forward-backward asymmetry $\frac{\sigma_F - \sigma_B}{\sigma_F + \sigma_B}$

for the process $e^+e^- \to \mu^+\mu^-$ on the $Z$ resonance (where $\sigma_F = \int_0^1 d\cos \theta \frac{d\sigma}{d \cos \theta}, \sigma_B = \int_{-1}^0 d \cos\theta \frac{d\sigma}{d \cos\theta}$)?

I'm unfamiliar with the literature, so I'd appreciate any help. Thanks!

share|cite|improve this question

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.