Changes between Version 1 and Version 2 of GammaZ
 Timestamp:
 04/06/12 16:33:02 (7 years ago)
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GammaZ
v1 v2 3 3 == Gamma/Z interference in e+e > mu+ mu == 4 4 5 * Calculate analytically the cross section for %$e^+ e^ \to \mu^+ \mu^$%as function of the CMS energy, including5 * Calculate analytically the cross section for $e^+ e^ \to \mu^+ \mu^$ as function of the CMS energy, including 6 6 both exchange of a photon and a Z boson. Neglect masses of the external fermions. Compare your result with 7 7 Software.MadGraph. 8 8 * The ForwardBackward asymmetry is 9 %$A_{FB}(\theta)=\frac{ d\sigma (\theta)  d\sigma(\pi\theta)}{ d\sigma (\theta) + d\sigma(\pi\theta)}$%.9 $A_{FB}(\theta)=\frac{ d\sigma (\theta)  d\sigma(\pi\theta)}{ d\sigma (\theta) + d\sigma(\pi\theta)}$. 10 10 Plot it as a function of the CMS energy. 11 11 … … 15 15 16 16 17