Possible implications of the channeling effect in NaI(Tl) crystals
R. Bernabei (1), P. Belli (1), F. Montecchia (1), F. Nozzoli (1), F., Cappella (2), A. Incicchitti (2), D. Prosperi (2), R. Cerulli (3), C.J. Dai, (4), H.L. He (4), H.H. Kuang (4), J.M. Ma (4), X.H. Ma (4), X.D. Sheng (4),, Z.P. Ye (4), R.G. Wang (4), Y.J. Zhang (4) ((1) Univ.
TL;DR
This paper explores how the channeling effect in NaI(Tl) crystals impacts the detection of low-energy ions, which is important for understanding WIMP dark matter interactions.
Contribution
It develops phenomenological models of the channeling effect in NaI(Tl) crystals and discusses their implications for dark matter detection.
Findings
Channeling affects the luminosity yield for low-energy recoils.
Modeling the effect requires complex evaluation of ion trajectories.
Implications for dark matter detection sensitivity are discussed.
Abstract
The channeling effect of low energy ions along the crystallographic axes and planes of NaI(Tl) crystals is discussed in the framework of corollary investigations on WIMP Dark Matter candidates. In fact, the modeling of this existing effect implies a more complex evaluation of the luminosity yield for low energy recoiling Na and I ions. In the present paper related phenomenological arguments are developed and possible implications are discussed at some extent.
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