# Find the gauge transformation of a Lagrangian

1. Oct 18, 2015

### silverwhale

1. The problem statement, all variables and given/known data
The lagrangian is given by:
$$L = -\frac{1}{4} F^2_{\mu \nu} + (\partial_{\mu} \phi_1 - m_1 A_{\mu})^2 + (\partial_{\mu} \phi_2 - m_2 A_{\mu})^2$$

2. Relevant equations
Find the gauge transformation of the fields that corresponds to a symmetry.
Find the combination of scalar fields which couples to A_mu.

3. The attempt at a solution
I am clueless here, any idea would be great.

2. Oct 23, 2015

### Greg Bernhardt

Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?