Channeling in direct dark matter detection II: channeling fraction in Si and Ge crystals
arXiv:1008.3676 · doi:10.1088/1475-7516/2010/11/028
Abstract
The channeling of the ion recoiling after a collision with a WIMP changes the ionization signal in direct detection experiments, producing a larger signal than otherwise expected. We give estimates of the fraction of channeled recoiling ions in Si and Ge crystals using analytic models produced since the 1960's and 70's to describe channeling and blocking effects. We used data obtained to avoid channeling in the implantation of dopants in Si crystals to test our models.
28 pages, 45 figures, Accepted for publication in JCAP on 27 October 2010, Minor revisions: added an appendix, updated references, corrected some typos, added some text before Section 2
References in corpus (6)
- Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
- Possible implications of the channeling effect in NaI(Tl) crystals
- XENON10/100 dark matter constraints in comparison with CoGeNT and DAMA: examining the Leff dependence
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- Discussing direct search of dark matter particles in the Minimal Supersymmetric extension of the Standard Model with light neutralinos
- A Two-Singlet Model for Light Cold Dark Matter
- Search for inelastic dark matter with the CDMS II experiment
- Light neutralino dark matter in light Higgs scenario related with the CoGeNT and DAMA/LIBRA results