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SENSEI: Direct-Detection Results on sub-GeV Dark Matter from a New Skipper CCD

Barak, Liron ; Bloch, Itay M. ; Cababie, Mariano ; Cancelo, Gustavo ; Chaplinsky, Luke ; Chierchie, Fernando ; Crisler, Michael ; Drlica-Wagner, Alex ; Essig, Rouven ; Estrada, Juan ; Etzion, Erez ; Moroni, Guillermo Fernandez ; Gift, Daniel ; Munagavalasa, Sravan ; Orly, Aviv ; Rodrigues, Dario ; Singal, Aman ; Haro, Miguel Sofo ; Stefanazzi, Leandro ; Tiffenberg, Javier ; Uemura, Sho ; Volansky, Tomer ; Yu, Tien-Tien

Physical review letters, 2020-10, Vol.125 (17), p.1-171802, Article 171802 [Periódico revisado por pares]

College Park: American Physical Society

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Título:
SENSEI: Direct-Detection Results on sub-GeV Dark Matter from a New Skipper CCD
Autor: Barak, Liron ; Bloch, Itay M. ; Cababie, Mariano ; Cancelo, Gustavo ; Chaplinsky, Luke ; Chierchie, Fernando ; Crisler, Michael ; Drlica-Wagner, Alex ; Essig, Rouven ; Estrada, Juan ; Etzion, Erez ; Moroni, Guillermo Fernandez ; Gift, Daniel ; Munagavalasa, Sravan ; Orly, Aviv ; Rodrigues, Dario ; Singal, Aman ; Haro, Miguel Sofo ; Stefanazzi, Leandro ; Tiffenberg, Javier ; Uemura, Sho ; Volansky, Tomer ; Yu, Tien-Tien
Assuntos: ASTRONOMY AND ASTROPHYSICS ; Construction planning ; Dark current ; Dark matter ; Data acquisition ; INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; Single electrons
É parte de: Physical review letters, 2020-10, Vol.125 (17), p.1-171802, Article 171802
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
AC02-07CH11359; SC0017938; AC02-05CH11231
YITP-SB-2020-6; FERMILAB-PUB-20-158-AE-E; arXiv:2004.11378
USDOE Office of Science (SC), High Energy Physics (HEP)
Descrição: 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.
Editor: College Park: American Physical Society
Idioma: Inglês

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SENSEI: Direct-Detection Results on sub-GeV Dark Matter from a New Skipper CCD

College Park: American Physical Society

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