Unified limiting form of graviton radiation at extreme energies
by
Marcello Ciafaloni(FI)
→
Europe/Rome
Description
After a plain introduction to the thought-experiment
of transplanckian scattering, I present a new calculation
of the associated graviton radiation, whose limiting form unifies
the soft- and high-energy emission regimes.
The graviton spin and its helicity transformation phases play
a fundamental role in determining both the elegant form of the
gravitational coherent-state and its new features, like the
deeply subplanckian characteristic energies and the reduction
of fragmentation region and rapidity plateau around the Einstein
deflection cone.
