UW EPE Seminar - New Sub-GeV Dark Matter Results from SENSEI - Sho Uemura, Tel Aviv University

Thursday 12 Nov 2020, 12:30 → 13:30 US/Pacific

zoom

Henry Lubatti (University of Washington (US))

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https://washington.zoom.us/j/91439926016

Recording https://washington.zoom.us/rec/share/PJ3SuTfjR02ek4YaN0Hn7LtDR5ojlmydkOj0_raxp8xn8gE1KBSTCxrDe3G2LB-d.m3hh8LaFf73DzImi

Meeting ID:
914 3992 6016

12:30 → 13:10 New Sub-GeV Dark Matter Results from SENSEI

SENSEI (Sub-Electron Noise Skipper Experimental Instrument) is pioneering the development of silicon CCDs with sub-electron charge resolution for low-threshold direct detection of dark matter. These "skipper CCDs" are the first detectors capable of resolving single electrons in each of millions of pixels, and the low thresholds possible with this technology give SENSEI world-leading sensitivity to sub-GeV dark matter. This spring, SENSEI conducted the first direct-detection search using a skipper CCD from a dedicated fabrication batch optimized for dark matter searches. With 24 days of data collected ~100 m underground at Fermilab with a 2-gram CCD, the experiment measured the lowest rates in silicon detectors for events containing one, two, three, or four electrons, and achieved world-leading sensitivity for a large range of sub-GeV dark matter masses. These recent results and preparations for the upcoming full-scale SENSEI run at the SNOLAB deep-underground facility will be presented.

Bio

Dr Uemura completed his Ph.D. at SLAC on Heavy Photon Search (accelerator-based dark sector experiment). AT LANL, he worked on the silicon vertex tracker for sPHENIX and a dark sector search at Fermilab. Most recently he has been with TAU based at Fermilab working on SENSEI.

Speakers: Sho Uemura, Sho Uemura (Tel Aviv University), Sho Uemura (Fermi National Accelerator Laboratory)

sensei_uw.pdf