Fig. 7: Dark matter interacting with electrons via light mediator. | Communications Physics

Fig. 7: Dark matter interacting with electrons via light mediator.

From: Collective excitations and low-energy ionization signatures of relativistic particles in silicon detectors

Fig. 7

a The differential cross section of a 100 keV boosted dark matter particle interacting with a silicon target with β = 0.05 and a massless mediator. Blue line corresponds to the Lindhard model68, orange and green lines corresponds to DarkELF (Mermin) and DarkELF (GPAW) respectively24,25, and the red line corresponds to QCDark28. b The cross section versus the number of electron-hole pairs created, where we use the secondary ionization model from ref. 88 at 100 K.

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