Searching for light WIMPS via their interaction with electrons

Abstract

In the present work we examine the possibility of detecting light dark matter particles (WIMP) utilizing their possible interactions with the electrons. Employing reasonable theoretical models we evaluate the expected event rates in the following cases: i) For WIMPs in the meV region treating electrons as free and utilizing calorimetric detectors at low temperatures. ii) Detecting recoiling electrons with energy in the eV region ejected out of an atom in the case of WIMPs with a mass more than an order of magnitude heavier than the electron. iii) By observing atomic excitations in the range of 1 meV to 10 eV excitation energy induced by the electron spin interaction in a magnetic field.

16 pages, 6 figures,3 tables. References added. arXiv admin note: text overlap with arXiv:1605.05413

References in corpus (6)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Projected WIMP sensitivity of the LUX-ZEPLIN (LZ) dark matter experiment
• Annual Modulation of Dark Matter in the Presence of Streams
• First Results of the Phase II SIMPLE Dark Matter Search
• Present and projected sensitivities of Dark Matter direct detection experiments to effective WIMP-nucleus couplings
• Axion Detection via Atomic Excitations