A possible explanation of ultracold neutrons anomaly and it's experimental consequences

A step toward solution of the anomaly problem for ultracold neutrons (UCN) is undertaken on the ground of the hypothesis that it is connected with fundamental points of quantum mechanics. It is supposed that a free neutron is described by a wave packet of a special kind. Because of high energy components of the packet the neutron can penetrate deeply into the potential barrier and even overcome it by a nontunneling way. It is shown that these considerations do not contradict to the essence of quantum mechanics and lead to some experimentally observable consequences: to weak temperature dependence of the loss coefficient and at the same time to strong temperature dependence of the UCN inelastic scattering on the walls. (author). 9 refs