User:Varganov/Sandbox

This is where I am trying out math. Refer to TeX_markup for details

\begin{array}{lcl} N_{SM} & = & \epsilon\mathcal{L}(A^{\ell\ell}\sigma_{Z\to\ell\ell}+A^{\tau\nu}\sigma_{W\to\tau\nu}+A^{\ell\nu}\sigma_{W\to\ell\nu}) \\ & = & \epsilon\mathcal{L}(A^{\ell\ell}/R(\frac{W}{Z})+A^{\tau\nu}R(\frac{W\to\tau\nu}{W\to\ell\nu})+A^{\ell\nu}){\color{Red}\sigma_{W\to\ell\nu}} \end{array} $$