ar X iv : h ep - p h / 05 10 04 2 v 1 4 O ct 2 00 5 Dark matter search by exclusive studies of X - rays following WIMPs nuclear interactions
نویسنده
چکیده
It is shown that weakly interacting massive particles (WIMPs), which are possible cold dark matter candidates, can be studied by exclusive measurements of X-rays following WIMPs nuclear interactions. Inner-shell atomic electrons are ionized through WIMPs nuclear interaction, and then mono-energetic X-rays are emitted when they are filled by outer-shell electrons. The number of inner-shell holes amounts to as large as one per five nuclear recoils for K-shell and several per recoil for L-shell in the case of medium heavy target nuclei interacting with 100 GeV WIMPs, and then the K and L X-ray peaks show up in the 5-50 keV region. Consequently exclusive studies of the X-rays in coincidence with the nuclear recoils and the ionization electrons are found to provide excellent opportunities to detect WIMPs such as the Lightest Super Symmetric Particles (LSP). PACS : 95.35+d, 12.60.Jv. e-mail: ejiri@ rcnp.osaka-u.ac.jp e-mail: moustaki@ auth.gr e-mail: Vergados@ cc.uoi.gr
منابع مشابه
ar X iv : h ep - p h / 05 10 04 2 v 2 1 4 M ar 2 00 6 Dark matter search by exclusive studies of X - rays following WIMPs nuclear interactions
It is shown that weakly interacting massive particles (WIMPs), which are possible cold dark matter candidates, can be studied by exclusive measurements of X-rays following WIMPs nuclear interactions. Inner-shell atomic electrons are ionized through WIMP-nuclear interaction, and then mono-energetic X-rays are emitted when they are filled by outer-shell electrons. The number of inner-shell holes ...
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