Experimental Comparison of the Velocities of eV (Visible) and GeV Electromagnetic Radiation
Abstract
An experiment has been carried out employing time-of-flight techniques to compare the velocity of propagation of short pulses of eV (visible) and GeV electromagnetic radiation. The results give a relative velocity difference [c(GeV)-c(eV)]c(eV)=(1.8+/-6)×10-6. The velocity of 11-GeV energy electrons ve is measured and found to be approximately equal to the velocity of visible light: (c-ve)c=(-1.3+/-2.7)×10-6.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 1973
- DOI:
- 10.1103/PhysRevLett.30.763
- Bibcode:
- 1973PhRvL..30..763B