- #1

- 3

- 0

##-\partial_\mu \phi^+ \partial_\mu\phi^-##

##-\frac{1}{2}\partial_\nu Z^0_\mu\partial_\nu Z^0_\mu##

##-igc_w\partial_\nu Z^0(W^+_\mu W^-_\nu-W^+_\nu W^-_\mu)##

How should one interpret the "derivative particle fields" like ##\partial_\mu\phi^+## physically? What are they or what do they represent?

Or, more generally, how should one interpret the differentiation, especially when applied to what represents physical objects?