SENSEI at SNOLAB: Single-Electron Event Rate and Implications for Dark Matter
We present results from data acquired by the SENSEI experiment at SNOLAB after a major upgrade in May 2023, which includes deploying 16 new sensors and replacing the copper trays that house the CCDs with a new light-tight design. We observe a single-electron event rate of $(1.39 \pm 0.11) \times 10^...
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| creator | Bloch, Itay M Botti, Ana M Cababie, Mariano Cancelo, Gustavo Cervantes-Vergara, Brenda A Daal, Miguel Desai, Ansh Drlica-Wagner, Alex Essig, Rouven Estrada, Juan Etzion, Erez Moroni, Guillermo Fernandez Holland, Stephen E Kehat, Jonathan Lawson, Ian Luoma, Steffon Orly, Aviv Perez, Santiago E Rodrigues, Dario Saffold, Nathan A Scorza, Silvia Sofo-Haro, Miguel Stifter, Kelly Tiffenberg, Javier Uemura, Sho Villalpando, Edgar Marrufo Volansky, Tomer Winkel, Federico Wu, Yikai Yu, Tien-Tien |
| description | We present results from data acquired by the SENSEI experiment at SNOLAB
after a major upgrade in May 2023, which includes deploying 16 new sensors and
replacing the copper trays that house the CCDs with a new light-tight design.
We observe a single-electron event rate of $(1.39 \pm 0.11) \times 10^{-5}$
e$^-$/pix/day, corresponding to $(39.8 \pm 3.1)$ e$^-$/gram/day. This is an
order-of-magnitude improvement compared to the previous lowest single-electron
rate in a silicon detector and the lowest for any photon detector in the
near-infrared-ultraviolet range. We use these data to obtain a 90% confidence
level upper bound of $1.53 \times 10^{-5}$ e$^-$/pix/day and to set constraints
on sub-GeV dark matter candidates that produce single-electron events. We
hypothesize that the data taken at SNOLAB in the previous run, with an older
tray design for the sensors, contained a larger rate of single-electron events
due to light leaks. We test this hypothesis using data from the SENSEI detector
located in the MINOS cavern at Fermilab. |
| doi_str_mv | 10.48550/arxiv.2410.18716 |
| format | Article |
| fullrecord | <record><control><sourceid>arxiv_GOX</sourceid><recordid>TN_cdi_arxiv_primary_2410_18716</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2410_18716</sourcerecordid><originalsourceid>FETCH-arxiv_primary_2410_187163</originalsourceid><addsrcrecordid>eNpjYJA0NNAzsTA1NdBPLKrILNMzMgEKGFqYG5pxMvgGu_oFu3oqJJYoBPv5-zg6WSkEZ-al56TquuakJpcU5ecpuJal5pUoBCWWpCok5qUoeOYW5GQmJ5Zk5ucVK6TlFym4JBZlK_gmlpSkFvEwsKYl5hSn8kJpbgZ5N9cQZw9dsMXxBUWZuYlFlfEgB8SDHWBMWAUAAe45Xg</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>SENSEI at SNOLAB: Single-Electron Event Rate and Implications for Dark Matter</title><source>arXiv.org</source><creator>Bloch, Itay M ; Botti, Ana M ; Cababie, Mariano ; Cancelo, Gustavo ; Cervantes-Vergara, Brenda A ; Daal, Miguel ; Desai, Ansh ; Drlica-Wagner, Alex ; Essig, Rouven ; Estrada, Juan ; Etzion, Erez ; Moroni, Guillermo Fernandez ; Holland, Stephen E ; Kehat, Jonathan ; Lawson, Ian ; Luoma, Steffon ; Orly, Aviv ; Perez, Santiago E ; Rodrigues, Dario ; Saffold, Nathan A ; Scorza, Silvia ; Sofo-Haro, Miguel ; Stifter, Kelly ; Tiffenberg, Javier ; Uemura, Sho ; Villalpando, Edgar Marrufo ; Volansky, Tomer ; Winkel, Federico ; Wu, Yikai ; Yu, Tien-Tien</creator><creatorcontrib>Bloch, Itay M ; Botti, Ana M ; Cababie, Mariano ; Cancelo, Gustavo ; Cervantes-Vergara, Brenda A ; Daal, Miguel ; Desai, Ansh ; Drlica-Wagner, Alex ; Essig, Rouven ; Estrada, Juan ; Etzion, Erez ; Moroni, Guillermo Fernandez ; Holland, Stephen E ; Kehat, Jonathan ; Lawson, Ian ; Luoma, Steffon ; Orly, Aviv ; Perez, Santiago E ; Rodrigues, Dario ; Saffold, Nathan A ; Scorza, Silvia ; Sofo-Haro, Miguel ; Stifter, Kelly ; Tiffenberg, Javier ; Uemura, Sho ; Villalpando, Edgar Marrufo ; Volansky, Tomer ; Winkel, Federico ; Wu, Yikai ; Yu, Tien-Tien</creatorcontrib><description>We present results from data acquired by the SENSEI experiment at SNOLAB
after a major upgrade in May 2023, which includes deploying 16 new sensors and
replacing the copper trays that house the CCDs with a new light-tight design.
We observe a single-electron event rate of $(1.39 \pm 0.11) \times 10^{-5}$
e$^-$/pix/day, corresponding to $(39.8 \pm 3.1)$ e$^-$/gram/day. This is an
order-of-magnitude improvement compared to the previous lowest single-electron
rate in a silicon detector and the lowest for any photon detector in the
near-infrared-ultraviolet range. We use these data to obtain a 90% confidence
level upper bound of $1.53 \times 10^{-5}$ e$^-$/pix/day and to set constraints
on sub-GeV dark matter candidates that produce single-electron events. We
hypothesize that the data taken at SNOLAB in the previous run, with an older
tray design for the sensors, contained a larger rate of single-electron events
due to light leaks. We test this hypothesis using data from the SENSEI detector
located in the MINOS cavern at Fermilab.</description><identifier>DOI: 10.48550/arxiv.2410.18716</identifier><language>eng</language><subject>Physics - Cosmology and Nongalactic Astrophysics ; Physics - High Energy Physics - Experiment</subject><creationdate>2024-10</creationdate><rights>http://creativecommons.org/licenses/by/4.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,881</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/2410.18716$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.2410.18716$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Bloch, Itay M</creatorcontrib><creatorcontrib>Botti, Ana M</creatorcontrib><creatorcontrib>Cababie, Mariano</creatorcontrib><creatorcontrib>Cancelo, Gustavo</creatorcontrib><creatorcontrib>Cervantes-Vergara, Brenda A</creatorcontrib><creatorcontrib>Daal, Miguel</creatorcontrib><creatorcontrib>Desai, Ansh</creatorcontrib><creatorcontrib>Drlica-Wagner, Alex</creatorcontrib><creatorcontrib>Essig, Rouven</creatorcontrib><creatorcontrib>Estrada, Juan</creatorcontrib><creatorcontrib>Etzion, Erez</creatorcontrib><creatorcontrib>Moroni, Guillermo Fernandez</creatorcontrib><creatorcontrib>Holland, Stephen E</creatorcontrib><creatorcontrib>Kehat, Jonathan</creatorcontrib><creatorcontrib>Lawson, Ian</creatorcontrib><creatorcontrib>Luoma, Steffon</creatorcontrib><creatorcontrib>Orly, Aviv</creatorcontrib><creatorcontrib>Perez, Santiago E</creatorcontrib><creatorcontrib>Rodrigues, Dario</creatorcontrib><creatorcontrib>Saffold, Nathan A</creatorcontrib><creatorcontrib>Scorza, Silvia</creatorcontrib><creatorcontrib>Sofo-Haro, Miguel</creatorcontrib><creatorcontrib>Stifter, Kelly</creatorcontrib><creatorcontrib>Tiffenberg, Javier</creatorcontrib><creatorcontrib>Uemura, Sho</creatorcontrib><creatorcontrib>Villalpando, Edgar Marrufo</creatorcontrib><creatorcontrib>Volansky, Tomer</creatorcontrib><creatorcontrib>Winkel, Federico</creatorcontrib><creatorcontrib>Wu, Yikai</creatorcontrib><creatorcontrib>Yu, Tien-Tien</creatorcontrib><title>SENSEI at SNOLAB: Single-Electron Event Rate and Implications for Dark Matter</title><description>We present results from data acquired by the SENSEI experiment at SNOLAB
after a major upgrade in May 2023, which includes deploying 16 new sensors and
replacing the copper trays that house the CCDs with a new light-tight design.
We observe a single-electron event rate of $(1.39 \pm 0.11) \times 10^{-5}$
e$^-$/pix/day, corresponding to $(39.8 \pm 3.1)$ e$^-$/gram/day. This is an
order-of-magnitude improvement compared to the previous lowest single-electron
rate in a silicon detector and the lowest for any photon detector in the
near-infrared-ultraviolet range. We use these data to obtain a 90% confidence
level upper bound of $1.53 \times 10^{-5}$ e$^-$/pix/day and to set constraints
on sub-GeV dark matter candidates that produce single-electron events. We
hypothesize that the data taken at SNOLAB in the previous run, with an older
tray design for the sensors, contained a larger rate of single-electron events
due to light leaks. We test this hypothesis using data from the SENSEI detector
located in the MINOS cavern at Fermilab.</description><subject>Physics - Cosmology and Nongalactic Astrophysics</subject><subject>Physics - High Energy Physics - Experiment</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNpjYJA0NNAzsTA1NdBPLKrILNMzMgEKGFqYG5pxMvgGu_oFu3oqJJYoBPv5-zg6WSkEZ-al56TquuakJpcU5ecpuJal5pUoBCWWpCok5qUoeOYW5GQmJ5Zk5ucVK6TlFym4JBZlK_gmlpSkFvEwsKYl5hSn8kJpbgZ5N9cQZw9dsMXxBUWZuYlFlfEgB8SDHWBMWAUAAe45Xg</recordid><startdate>20241024</startdate><enddate>20241024</enddate><creator>Bloch, Itay M</creator><creator>Botti, Ana M</creator><creator>Cababie, Mariano</creator><creator>Cancelo, Gustavo</creator><creator>Cervantes-Vergara, Brenda A</creator><creator>Daal, Miguel</creator><creator>Desai, Ansh</creator><creator>Drlica-Wagner, Alex</creator><creator>Essig, Rouven</creator><creator>Estrada, Juan</creator><creator>Etzion, Erez</creator><creator>Moroni, Guillermo Fernandez</creator><creator>Holland, Stephen E</creator><creator>Kehat, Jonathan</creator><creator>Lawson, Ian</creator><creator>Luoma, Steffon</creator><creator>Orly, Aviv</creator><creator>Perez, Santiago E</creator><creator>Rodrigues, Dario</creator><creator>Saffold, Nathan A</creator><creator>Scorza, Silvia</creator><creator>Sofo-Haro, Miguel</creator><creator>Stifter, Kelly</creator><creator>Tiffenberg, Javier</creator><creator>Uemura, Sho</creator><creator>Villalpando, Edgar Marrufo</creator><creator>Volansky, Tomer</creator><creator>Winkel, Federico</creator><creator>Wu, Yikai</creator><creator>Yu, Tien-Tien</creator><scope>GOX</scope></search><sort><creationdate>20241024</creationdate><title>SENSEI at SNOLAB: Single-Electron Event Rate and Implications for Dark Matter</title><author>Bloch, Itay M ; 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after a major upgrade in May 2023, which includes deploying 16 new sensors and
replacing the copper trays that house the CCDs with a new light-tight design.
We observe a single-electron event rate of $(1.39 \pm 0.11) \times 10^{-5}$
e$^-$/pix/day, corresponding to $(39.8 \pm 3.1)$ e$^-$/gram/day. This is an
order-of-magnitude improvement compared to the previous lowest single-electron
rate in a silicon detector and the lowest for any photon detector in the
near-infrared-ultraviolet range. We use these data to obtain a 90% confidence
level upper bound of $1.53 \times 10^{-5}$ e$^-$/pix/day and to set constraints
on sub-GeV dark matter candidates that produce single-electron events. We
hypothesize that the data taken at SNOLAB in the previous run, with an older
tray design for the sensors, contained a larger rate of single-electron events
due to light leaks. We test this hypothesis using data from the SENSEI detector
located in the MINOS cavern at Fermilab.</abstract><doi>10.48550/arxiv.2410.18716</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - Cosmology and Nongalactic Astrophysics Physics - High Energy Physics - Experiment |
| title | SENSEI at SNOLAB: Single-Electron Event Rate and Implications for Dark Matter |
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