The neutron life time τn was measured by storage of ultracold neutrons (UCN) in a material
bottle covered with Fomblin oil. The inelastically scattered neutrons were detected by …

The existence of quantum states of matter in a gravitational field was demonstrated recently
in the Institut Laue–Langevin (ILL), Grenoble, in a series of experiments with ultra cold …

Building on the experience that Mampe gained with his ultra-cold neutron (UCN) storage
bottle MAMBO I (Phys Rev. Lett. 63 (1989) 593) the successor experiment MAMBO II has …

Usually Ultra Cold Neutrons (UCN) and Very Cold Neutrons (VCN) are not efficiently
scattered by individual atoms in matter due to their large wavelength. On the contrary, such …

Ultracold neutrons (UCN) are lost from traps if they are quasi-elastically scattered from the
wall with an energy gain sufficient to exceed the Fermi potential for the wall. Possible …

Ultracold and very cold neutrons (UCN and VCN) interact strongly with nanoparticles due to
the similarity of their wavelengths and nanoparticles sizes. We analyze the hypothesis that …

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Several hydrogen-free liquid low-temperature fluoropolymers are investigated from the point
of view of their possible use as the material for walls of ultracold neutron traps with low …

The rare processes of weak heating and cooling of ultracold neutrons reflected from the
surface of fluorosubstituted oil are studied. The probability of these processes is estimated at …

We studied the phenomenon of relatively small changes in the energy of ultracold neutrons
(UCN)(when compared to thermal motion energy) when these are reflected on a surface …