SENSEI Detects Sub-GeV Dark Matter

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Dark matter searches

Phys Org

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Science

Sub-GeV dark matter hunt: SENSEI collaboration reports first findings

Summary

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91% Informative

Dark matter searches have been aimed at detecting different possible signals associated with the presence of these elusive particles or with their interaction with regular matter.

The SENSEI (Sub-Electron Noise Skipper-CCD experimental instrument) detector is a highly sensitive imaging sensor located at the SNOLAB research facility in Canada .

The research group analyzing data collected by this detector have published the results of their first search for sub-GeV dark matter.

A key aspect of the research efforts by the SENSEI collaboration involves understanding how new high-sensitivity sensors are best operated.

This is because detector effects (e.g., dark counts or spurious charges) produced without particles interacting, can often dominate the background signals collected while trying to pick up rare events such as dark matter interactions.

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