Gravitation of fast-moving particles

Melissinos (Nuovo Cimento; B 62:190 (1981)) has recently discussed two possible experiments on the gravitation of a bunch of charged particles moving in a storage ring. In one experiment the gravitational field of the bunch is measured by a detector, and in the second the bunch is deflected from its circular path by a large mass outside the ring. In this paper the theoretical basis of the experiments is examined by using the properties of Schwarzschild space-time. (author)