# C and P parity of gauge bosons - what are the values?

1. Mar 25, 2009

### heinz

Can somebody explain the parities of photons, W, Z and gluons?

QFT says that bosons and antibosons have the same P parity.
But the P parity of the gauge bosons is rarely given.
Sometimes photons are said to have negative parity, while other say this
is only the case for electric dipole transitions.
For W and Z, it is sometimes written that they have no P
parity because of the P violation of the weak interaction.
Is that correct?
In short, I am confused: what are the P parties of the
gauge bosons?

C parity exists only for neutral particles. Thus it can be
defined at most for the photon, the Z and the gluons.
Do they have a C parity? Does it make sense for them at all?

Thanks for any help!

Heinz