On electromagnetic contributions in WIMP quests
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.D. Sheng (4), Z.P. Ye (4), ((1) Univ., INFN Roma Tor Vergata, (2) Univ., INFN Roma
TL;DR
This paper discusses the Migdal effect, an electromagnetic phenomenon often neglected in WIMP dark matter searches, and explores its theoretical basis and implications for detection strategies.
Contribution
It provides a detailed theoretical analysis of the Migdal effect and highlights its significance in improving the accuracy of WIMP detection methods.
Findings
The Migdal effect can significantly influence WIMP detection signals.
Proper accounting for this effect alters the interpretation of experimental data.
Theoretical models of the Migdal effect can enhance dark matter search sensitivity.
Abstract
The effect pointed out by A. B. Migdal in the 40's (hereafter named Migdal effect) has so far been usually neglected in the direct searches for WIMP Dark Matter candidates. This effect consists in the ionization and the excitation of bound atomic electrons induced by the recoiling atomic nucleus. In the present paper the related theoretical arguments are developed and some consequences of the proper accounting for this effect are discussed by some examples of practical interest.
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