Rare event searches with cryogenic detectors.

Area of Science:

• Experimental Particle Physics
• Astrophysics
• Detector Technology

Background:

• Cryogenic detectors offer unparalleled sensitivity to minute energy depositions.
• Scintillating crystals enable discrimination between dark matter signals and background events.
• The CRESST experiment has been a pioneer in sub-GeV dark matter searches using this technology.

Purpose of the Study:

• To discuss the detection principles and applications of cryogenic detectors.
• To present recent dark matter detection results from the CRESST experiment.
• To provide updates on the COSINUS and NUCLEUS experiments for dark matter and neutrino research.

Main Methods:

• Utilizing cryogenic detectors with scintillating crystals for particle detection.
• Employing transition edge sensors and SQUIDs for precise temperature rise measurements.
• Analyzing particle scattering events to differentiate between nuclear recoils and electromagnetic backgrounds.

Main Results:

• The CRESST experiment continues to be a leading facility for sub-GeV dark matter searches.
• A novel background event type has been identified in recent CRESST data.
• COSINUS and NUCLEUS experiments are advancing dark matter and neutrino-nucleus scattering measurements.

Conclusions:

• Cryogenic detector technology is vital for cutting-edge research in dark matter and neutrino physics.
• Ongoing experiments like CRESST, COSINUS, and NUCLEUS are pushing the frontiers of particle detection.
• This technology holds significant promise for future discoveries at the particle-gravity frontier.