- #1
the_pulp
- 207
- 9
I was thinking about the QED lagrangian and renormalization and I thought something like this:
"There are three renormalizable infinites in QED so there should be three free parameters to adjust in order to obtain the low energy results. The three 'high energy' parameters are e, m and where is the third parameter? Let me see... Oh it should be c, the speed of light.
One of the Renormalizable diagrams is the vacuum energy. That is a photon travels from left to right, it suddenly turns into an electron and a positron and then they should turn again into a photon. If the speed of the 'electron-positron' is slower than light then the speed of the high energy photon should be higher than c, in order to get a speed of the low energy photon equal to c."
I don't know if I could express the idea in a clear way, but supposing this is a case:
Is the high energy photon faster than c? That is to say, is there, for high energy, a bare c that is higher than experimental c?
Sorry in advance if I couldn't express myself
"There are three renormalizable infinites in QED so there should be three free parameters to adjust in order to obtain the low energy results. The three 'high energy' parameters are e, m and where is the third parameter? Let me see... Oh it should be c, the speed of light.
One of the Renormalizable diagrams is the vacuum energy. That is a photon travels from left to right, it suddenly turns into an electron and a positron and then they should turn again into a photon. If the speed of the 'electron-positron' is slower than light then the speed of the high energy photon should be higher than c, in order to get a speed of the low energy photon equal to c."
I don't know if I could express the idea in a clear way, but supposing this is a case:
Is the high energy photon faster than c? That is to say, is there, for high energy, a bare c that is higher than experimental c?
Sorry in advance if I couldn't express myself