TY - JOUR
T1 - SENSEI
T2 - Direct-Detection Results on sub-GeV Dark Matter from a New Skipper CCD
AU - (SENSEI Collaboration)
AU - Barak, Liron
AU - Bloch, Itay M.
AU - Cababie, Mariano
AU - Cancelo, Gustavo
AU - Chaplinsky, Luke
AU - Chierchie, Fernando
AU - Crisler, Michael
AU - Drlica-Wagner, Alex
AU - Essig, Rouven
AU - Estrada, Juan
AU - Etzion, Erez
AU - Moroni, Guillermo Fernandez
AU - Gift, Daniel
AU - Munagavalasa, Sravan
AU - Orly, Aviv
AU - Rodrigues, Dario
AU - Singal, Aman
AU - Haro, Miguel Sofo
AU - Stefanazzi, Leandro
AU - Tiffenberg, Javier
AU - Uemura, Sho
AU - Volansky, Tomer
AU - Yu, Tien Tien
N1 - Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/10
Y1 - 2020/10
N2 - We present the first direct-detection search for sub-GeV dark matter using a new ∼2-gram high-resistivity Skipper CCD from a dedicated fabrication batch that was optimized for dark matter searches. Using 24 days of data acquired in the MINOS cavern at the Fermi National Accelerator Laboratory, we measure the lowest rates in silicon detectors of events containing one, two, three, or four electrons, and achieve world-leading sensitivity for a large range of sub-GeV dark matter masses. Data taken with different thicknesses of the detector shield suggest a correlation between the rate of high-energy tracks and the rate of single-electron events previously classified as "dark current."We detail key characteristics of the new Skipper CCDs, which augur well for the planned construction of the ∼100-gram SENSEI experiment at SNOLAB.
AB - We present the first direct-detection search for sub-GeV dark matter using a new ∼2-gram high-resistivity Skipper CCD from a dedicated fabrication batch that was optimized for dark matter searches. Using 24 days of data acquired in the MINOS cavern at the Fermi National Accelerator Laboratory, we measure the lowest rates in silicon detectors of events containing one, two, three, or four electrons, and achieve world-leading sensitivity for a large range of sub-GeV dark matter masses. Data taken with different thicknesses of the detector shield suggest a correlation between the rate of high-energy tracks and the rate of single-electron events previously classified as "dark current."We detail key characteristics of the new Skipper CCDs, which augur well for the planned construction of the ∼100-gram SENSEI experiment at SNOLAB.
UR - http://www.scopus.com/inward/record.url?scp=85093986594&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.125.171802
DO - 10.1103/PhysRevLett.125.171802
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
C2 - 33156657
AN - SCOPUS:85093986594
SN - 0031-9007
VL - 125
JO - Physical Review Letters
JF - Physical Review Letters
IS - 17
M1 - 171802
ER -