Bunch anomalies in SR-IR time domain emission

A novel complex of time domain beam diagnostic tools integrated with SHT congruent calculus shows for the first time a direct evidence of a delayed component in the SR-IR emission of relativistic bunches of electrons and positrons at DAΦNE and HLS (Hefei Light Source). This evidence may lead to a paradox within the fundamental postulates of Special Relativity which implies a different value of light speed in vacuum. If it will not be considered valid, the paradox may be solved by discarding the “Rigid Bunch Model” in order to allow the bunch of relativistic particles to behave and evolve dynamically through a major collection of degrees of freedom, therefore exhibiting internal modes and/or “super-motions”.