Recoiling Ion-Channeling in Direct Dark Matter Detectors
Cosmology and Nongalactic Astrophysics
2015-06-03 v1 Instrumentation and Methods for Astrophysics
High Energy Physics - Phenomenology
Abstract
The channeling of the recoiling nucleus in crystalline detectors after a WIMP collision would produce a larger scintillation or ionization signal in direct detection experiments than otherwise expected. I present estimates of channeling fractions obtained using analytic models developed from the 1960's onwards to describe channeling and blocking effects. We find the fractions to be too small to affect the fits to potential WIMP candidates. I also examine the possibility of detecting a daily modulation of the dark matter signal due to channeling.
Keywords
Cite
@article{arxiv.1201.4560,
title = {Recoiling Ion-Channeling in Direct Dark Matter Detectors},
author = {Graciela B. Gelmini},
journal= {arXiv preprint arXiv:1201.4560},
year = {2015}
}
Comments
Talk presented at the DSU 2011 Conference, KITPC, Beijing, China, Sept 26-30, 2011. 8 pages, 14 figures, jpconf.cls and jpconf11.clo necessary to typeset