The Fulling-Davies-Unruh Effect is Mandatory: The Proton's Testimony
  We discuss the decay of accelerated protons and illustrate how the Fulling-Davies-Unruh effect is indeed mandatory to maintain the consistency of standard Quantum Field Theory. The confidence level of the Fulling-Davies-Unruh effect must be the same as that of Quantum Field Theory itself. 
George E. A. Matsas and Daniel A. T. Vanzella