Supermirror for Antineutrons

Determining the probability of the neutron–antineutron transformation has been the subject of research for five decades. To increase the luminosity in experiments to measure the probability of this process, it is proposed that a neutron guide be used as it increases the solid angle of neutron-source visibility. To increase the range of values of the wave vector of neutrons and antineutrons, it is proposed that a neutron guide with a supermirror coating be employed. In this work, we simulate a multilayer structure in which the range of wave-vector values is extended. The structure is a supermirror in which the layers consist of tungsten and barium isotopes.