Trap with ultracold neutrons as a detector of dark matter particles with long-range forces
Abstract
The possibility of using a trap with ultracold neutrons as a detector of dark matter particles with long-range forces is considered. The basic advantage of the proposed method lies in possibility of detecting the recoil energy 10-7 eV. The restrictions on parameters of Yukawa type interaction potential between dark matter particles and a neutron are presented for different dark matter densities on the Earth. The assumption concerned with long-range interaction of dark matter particles and ordinary matter leads to a substantial enhancement of cross section at low energy. Consequently, there arises a possibility of capture and accumulation of dark matter in a gravitational field of the Earth. Rough estimation of accumulation of low-energy dark matter on the Earth is discussed. The first experimental restrictions for existence of dark matter with long-range forces on the Earth are presented.
Keywords
Cite
@article{arxiv.1004.2981,
title = {Trap with ultracold neutrons as a detector of dark matter particles with long-range forces},
author = {A. P. Serebrov and O. M. Zherebtsov},
journal= {arXiv preprint arXiv:1004.2981},
year = {2015}
}
Comments
17 pages, 6 figures