Burgos, S;
Daw, E;
Forbes, J;
Ghag, C;
Gold, M;
Hagemann, C;
Kudryavtsev, VA;
... Tziaferi, E; + view all
(2009)
First measurement of the head-tail directional nuclear recoil signature at energies relevant to WIMP dark matter searches.
Astroparticle Physics
, 31
(4)
pp. 261-266.
10.1016/j.astropartphys.2009.02.003.
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Abstract
We present first evidence for the so-called head-tail directional signature of neutron-induced nuclear recoil tracks at energies down to 1.5 keV/amu using the DRIFT-IIc dark matter detector. This regime is appropriate for recoils induced by Weakly Interacting Massive Particle (WIMPs) but one where the differential ionization is poorly understood. We show that the distribution of recoil energies and directions induced here by 252Cf neutrons matches well that expected from massive WIMPs. The results open a powerful new means of searching for a galactic signature from WIMPs. © 2009.
| Type: | Article |
|---|---|
| Title: | First measurement of the head-tail directional nuclear recoil signature at energies relevant to WIMP dark matter searches |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.astropartphys.2009.02.003 |
| Publisher version: | https://doi.org/10.1016/j.astropartphys.2009.02.00... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Dark matter; WIMPs; Neutralino; Negative ion TPC; DRIFT; Directionality; Boulby |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1352143 |
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