Trap with ultracold neutrons as a detector of dark matter with long-range forces
- Russian Academy of Sciences, St. Petersburg Nuclear Physics Institute (Russian Federation)
The possibility of using a trap with ultracold neutrons (UCNs) as a detector of dark matter particles with long-range forces is considered. The main advantage of this method is the possibility of detecting recoil energies {approx}10{sup -7} eV. The limitations on the parameters of the interaction potential in the form {Psi}=ae{sup -r/b}/r between dark matter particles and neutrons at different values of the dark matter density on the Earth are represented. It is shown that the suggestion about the long-range character of the interaction between dark matter particles leads to a significant increase in the elastic scattering cross section at low energies. As a consequence, dark matter can be captured and accumulated by the terrestrial gravitational field. The first experimental limitations on the existence of long-range dark matter on the Earth are presented.
- OSTI ID:
- 22054208
- Journal Information:
- Crystallography Reports, Vol. 56, Issue 7; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
- Country of Publication:
- United States
- Language:
- English
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