# Standard Model of Particle Physics

1. Aug 17, 2008

### jackfierce

Does anyone know where to find the standard model of particle physics shown by Brian Cox in his LHC TED talk (found around 6:35 here: http://www.youtube.com/watch?v=_6uKZWnJLCM)? I'm looking to print out the equation but can't find it anywhere.

Thanks

2. Aug 17, 2008

### Crosson

The standard model of particle physics is the assertion that the direct product of groups $SU(3) \cross SU(2) \cross U(1)$ is a local gauge symmetry group in spacetime. In the standard model, differential equations for the field (analogous to Maxwell's equations) are determined by inserting the appropriate Lagrangian for that field into the Euler-Lagrange field equations.

In other words, the differential equations that describe the fields in the standard model are so complicated that we never look at them directly.

3. Aug 17, 2008

### humanino

It's scattered over the web in slightly different versions. For instance here (or exercise 1.1.1.1.1a version)

4. Aug 18, 2008

Perfect!
Thanks