Accelerated decay of a nuclear excitation in a crystal during resonant γ scattering
Smirnov G. V. , Shvyd'ko Yu. V. , Realo E.
The time dependence of the coherent scattering of resonant γ rays by nuclei in a crystal has been measured. For the first time, it has been found possible to observe an acceleration of the decay of an excited nuclear state along the direction of the Bragg angle.