CRESST-III: a low-mass Dark Matter detector.

Di Lorenzo S.

III - Astrofisica
Aula 32B-3 - Venerdì 21 h 15:30 - 18:30
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The CRESST experiment, located at Laboratori Nazionali del Gran Sasso (LNGS, Italy), aims at direct detection of Dark Matter particles via elastic scattering off nuclei in $CaWO_{4}$ scintillating crystals. CRESST consists of an array of $10 \times 24$ gr crystals operated as cryogenic calorimeters, each equipped with a cryogenic light detector. A particle interaction in the crystal produces a phonon and light signal; the latter is used to discriminate nuclear recoils from the dominant electron/gamma background. CRESST achieves outstandingly low nuclear recoil thresholds ($<100$ eV) yielding world-leading sensitivity for light DM particles (mDM$< 1.8$ GeV/c${}^{2}$). Most recent results are presented and discussed.

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