Bragg-like curve for dark matter searches; binary gases

Details Bragg-like curve for dark matter searches; binary gases Bragg-like curve for dark matter searches; binary gases

2008-04-08

arxiv.org/abs/0804.1191v1

Rad. Phys. Chem. 77 (2008) 1311-1317

Astronomy and Astrophysics

Astrophysics

Submitted to Rad. Phys. Chem., 18 pages, 9 figures

Scientific paper

10.1016/j.radphyschem.2008.05.04

The directional detection of low-energy recoil ions can provide strong possibility for observation of dark matter in the Galaxy. Quenching factors for 5-200 keV recoil ions in N2, CO2, CF4 and CS2 gases are evaluated and Bragg-like curves, the electronic energy deposition as a function of the projected range, are presented. The Bragg-like curves are intended for directional search for the dark matter candidate, WIMPs, using the gas TPC. Quenching factors for very heavy ions produced in alpha-decay in dry air, N2, CO2, CF4 and CS2 are also estimated and compared with experimental values.

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