Ion-Channeling in Direct Dark Matter Crystalline Detectors

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 the importance of this effect in NaI, Si and Ge crystals, using analytic models developed from the 1960's onwards to describe channeling and blocking effects.

Comments: Talk presented at IDM2010 (Identification of Dark Matter), July 26 to 30 2010, Montpellier, France; 6 pages, 10 eps figures, PoS.cls needed to typeset the tex file