The abstract theory posits that while photons generally do not directly interact due to their nature as electromagnetic waves without mass, ultra-high-energy gamma-ray photons can cast shadows through second-order quantum electrodynamics processes involving photon-photon scattering mediated by virtual electron-positron pairs. This mechanism relies on the spontaneous conversion of high-energy photon energy into particle-antiparticle states that deflect incident radiation, specifically within the domain of astroparticle physics and cosmology. The concept establishes a causal link between primordial Cosmic Microwave Background (CMB) photons and extragalactic gamma rays, demonstrating how these low-energy background particles absorb or scatter higher-energy counterparts, thereby creating observable extinction effects over intergalactic distances without requiring intermediate matter such as electrons in the line of sight.
The abstract theory posits that while photons generally do not directly interact due to their nature as electromagnetic waves without mass, ultra-high-energy gamma-ray photons can cast shadows throug…