User:Varganov/Sandbox

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

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