Search for two-neutrino double-beta decay of 136Xe to the $0$$^{+}_{1}$ excited state of 136Ba with the complete EXO-200 dataset
Abstract A new search for two-neutrino double-beta (2νββ) decay of 136Xe to the excited state of 136Ba is performed with the full EXO-200 dataset. A deep learning-based convolutional neural network is used to discriminate signal from background events. Signal detection efficiency is increased relati...
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| Veröffentlicht in: | Chinese physics C 2023-08, Vol.47 (10) |
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| creator | Al Kharusi, S. Anton, G. Badhrees, I. Barbeau, P. S. Beck, D. Belov, V. Bhatta, T. Breidenbach, M. Brunner, T. Cao, G. F. Cen, W. R. Chambers, C. Cleveland, B. Coon, M. Craycraft, A. Daniels, T. Darroch, L. Daugherty, S. J. Davis, J. Delaquis, S. Der Mesrobian-Kabakian, A. DeVoe, R. Dilling, J. Dolgolenko, A. Dolinski, M. J. Echevers, J. Fairbank Jr., W. Fairbank, D. Farine, J. Feyzbakhsh, S. Fierlinger, P. Fu, Y. S. Fudenberg, D. Gautam, P. Gornea, R. Gratta, G. Hall, C. Hansen, E. V. Hoessl, J. Hufschmidt, P. Hughes, M. Iverson, A. Jamil, A. Jessiman, C. Jewell, M. J. Johnson, A. Kaufman, L. J. Koffas, T. Kuchenkov, A. Kumar, K. S. Lan, Y. Larson, A. Lenardo, B. G. Leonard, D. S. Li, G. S. Li, S. Li, Z. Licciardi, C. Lin, Y. H. MacLellan, R. McElroy, T. Michel, T. Mong, B. Moore, D. C. Murray, K. Njoya, O. Nusair, O. Odian, A. Ostrovskiy, I. Perna, A. Piepke, A. Pocar, A. Retière, F. Robinson, A. L. Rowson, P. C. Runge, J. Schmidt, S. Sinclair, D. Skarpaas, K. Soma, A. K. Stekhanov, V. Tarka, M. Thibado, S. Totev, T. I. Tsang, R. Veenstra, B. Veeraraghavan, V. Vogel, P. Vuilleumier, J. -L. Wagenpfeil, M. Watkins, J. Weber, M. Wen, L. J. Wichoski, U. Wrede, G. Wu, S. X. Yahne, D. R. Yang, L. Yen, Y. -R. Zeldovich, O. Ya |
| description | Abstract
A new search for two-neutrino double-beta (2νββ) decay of 136Xe to the
excited state of 136Ba is performed with the full EXO-200 dataset. A deep learning-based convolutional neural network is used to discriminate signal from background events. Signal detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of two. With the addition of the Phase II dataset taken with an upgraded detector, the median 90% confidence level half-life sensitivity of 2νββ decay to the
state of 136Ba is
yr using a total 136Xe exposure of 234.1 kg yr. No statistically significant evidence for 2νββ decay to the
state is observed, leading to a lower limit of
yr at 90% confidence level, improved by 70% relative to the current world's best constraint. |
| format | Article |
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A new search for two-neutrino double-beta (2νββ) decay of 136Xe to the
excited state of 136Ba is performed with the full EXO-200 dataset. A deep learning-based convolutional neural network is used to discriminate signal from background events. Signal detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of two. With the addition of the Phase II dataset taken with an upgraded detector, the median 90% confidence level half-life sensitivity of 2νββ decay to the
state of 136Ba is
yr using a total 136Xe exposure of 234.1 kg yr. No statistically significant evidence for 2νββ decay to the
state is observed, leading to a lower limit of
yr at 90% confidence level, improved by 70% relative to the current world's best constraint.</description><identifier>ISSN: 1674-1137</identifier><language>eng</language><publisher>United States: IOP Publishing</publisher><subject>excited state ; EXO-200 experiment ; neutrinoless double beta decay ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</subject><ispartof>Chinese physics C, 2023-08, Vol.47 (10)</ispartof><lds50>peer_reviewed</lds50><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>230,314,780,784,885</link.rule.ids><backlink>$$Uhttps://www.osti.gov/servlets/purl/1999522$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Al Kharusi, S.</creatorcontrib><creatorcontrib>Anton, G.</creatorcontrib><creatorcontrib>Badhrees, I.</creatorcontrib><creatorcontrib>Barbeau, P. 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Ya</creatorcontrib><creatorcontrib>Univ. of Alabama, Tuscaloosa, AL (United States)</creatorcontrib><creatorcontrib>Stanford Univ., CA (United States)</creatorcontrib><title>Search for two-neutrino double-beta decay of 136Xe to the $0$$^{+}_{1}$ excited state of 136Ba with the complete EXO-200 dataset</title><title>Chinese physics C</title><description>Abstract
A new search for two-neutrino double-beta (2νββ) decay of 136Xe to the
excited state of 136Ba is performed with the full EXO-200 dataset. A deep learning-based convolutional neural network is used to discriminate signal from background events. Signal detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of two. With the addition of the Phase II dataset taken with an upgraded detector, the median 90% confidence level half-life sensitivity of 2νββ decay to the
state of 136Ba is
yr using a total 136Xe exposure of 234.1 kg yr. No statistically significant evidence for 2νββ decay to the
state is observed, leading to a lower limit of
yr at 90% confidence level, improved by 70% relative to the current world's best constraint.</description><subject>excited state</subject><subject>EXO-200 experiment</subject><subject>neutrinoless double beta decay</subject><subject>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</subject><issn>1674-1137</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNqNzLsKwkAQheEtFLy-wyDpZGE30WhaRbGz0CKVYd1MSCRmJDuiIoKP7gUfwOoU_8dpiLYOJyOpdTBpiY5zB6XCkZpO2-K5QVPbHDKqgS8kKzxzXVQEKZ33Jco9soEUrbkBZaCDMEZgAs4RPOV5u_vwkdz1wwO82oIxBceG8WdnBi4F519t6Xgq8Z0W8Vr6SkFq2DjknmhmpnTY_21XDJaL7XwlyXGRuM-pzS1VFVpOdBRFY98P_kIvu2BMDg</recordid><startdate>20230811</startdate><enddate>20230811</enddate><creator>Al Kharusi, S.</creator><creator>Anton, G.</creator><creator>Badhrees, I.</creator><creator>Barbeau, P. 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R.</creator><creator>Yang, L.</creator><creator>Yen, Y. -R.</creator><creator>Zeldovich, O. Ya</creator><general>IOP Publishing</general><scope>OIOZB</scope><scope>OTOTI</scope></search><sort><creationdate>20230811</creationdate><title>Search for two-neutrino double-beta decay of 136Xe to the $0$$^{+}_{1}$ excited state of 136Ba with the complete EXO-200 dataset</title><author>Al Kharusi, S. ; Anton, G. ; Badhrees, I. ; Barbeau, P. S. ; Beck, D. ; Belov, V. ; Bhatta, T. ; Breidenbach, M. ; Brunner, T. ; Cao, G. F. ; Cen, W. R. ; Chambers, C. ; Cleveland, B. ; Coon, M. ; Craycraft, A. ; Daniels, T. ; Darroch, L. ; Daugherty, S. J. ; Davis, J. ; Delaquis, S. ; Der Mesrobian-Kabakian, A. ; DeVoe, R. ; Dilling, J. ; Dolgolenko, A. ; Dolinski, M. J. ; Echevers, J. ; Fairbank Jr., W. ; Fairbank, D. ; Farine, J. ; Feyzbakhsh, S. ; Fierlinger, P. ; Fu, Y. S. ; Fudenberg, D. ; Gautam, P. ; Gornea, R. ; Gratta, G. ; Hall, C. ; Hansen, E. V. ; Hoessl, J. ; Hufschmidt, P. ; Hughes, M. ; Iverson, A. ; Jamil, A. ; Jessiman, C. ; Jewell, M. J. ; Johnson, A. ; Kaufman, L. J. ; Koffas, T. ; Kuchenkov, A. ; Kumar, K. S. ; Lan, Y. ; Larson, A. ; Lenardo, B. G. ; Leonard, D. S. ; Li, G. S. ; Li, S. ; Li, Z. ; Licciardi, C. ; Lin, Y. H. ; MacLellan, R. ; McElroy, T. ; Michel, T. ; Mong, B. ; Moore, D. C. ; Murray, K. ; Njoya, O. ; Nusair, O. ; Odian, A. ; Ostrovskiy, I. ; Perna, A. ; Piepke, A. ; Pocar, A. ; Retière, F. ; Robinson, A. L. ; Rowson, P. C. ; Runge, J. ; Schmidt, S. ; Sinclair, D. ; Skarpaas, K. ; Soma, A. K. ; Stekhanov, V. ; Tarka, M. ; Thibado, S. ; Totev, T. I. ; Tsang, R. ; Veenstra, B. ; Veeraraghavan, V. ; Vogel, P. ; Vuilleumier, J. -L. ; Wagenpfeil, M. ; Watkins, J. ; Weber, M. ; Wen, L. J. ; Wichoski, U. ; Wrede, G. ; Wu, S. X. ; Yahne, D. R. ; Yang, L. ; Yen, Y. -R. ; Zeldovich, O. Ya</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-osti_scitechconnect_19995223</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>excited state</topic><topic>EXO-200 experiment</topic><topic>neutrinoless double beta decay</topic><topic>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Al Kharusi, S.</creatorcontrib><creatorcontrib>Anton, G.</creatorcontrib><creatorcontrib>Badhrees, I.</creatorcontrib><creatorcontrib>Barbeau, P. S.</creatorcontrib><creatorcontrib>Beck, D.</creatorcontrib><creatorcontrib>Belov, V.</creatorcontrib><creatorcontrib>Bhatta, T.</creatorcontrib><creatorcontrib>Breidenbach, M.</creatorcontrib><creatorcontrib>Brunner, T.</creatorcontrib><creatorcontrib>Cao, G. F.</creatorcontrib><creatorcontrib>Cen, W. R.</creatorcontrib><creatorcontrib>Chambers, C.</creatorcontrib><creatorcontrib>Cleveland, B.</creatorcontrib><creatorcontrib>Coon, M.</creatorcontrib><creatorcontrib>Craycraft, A.</creatorcontrib><creatorcontrib>Daniels, T.</creatorcontrib><creatorcontrib>Darroch, L.</creatorcontrib><creatorcontrib>Daugherty, S. J.</creatorcontrib><creatorcontrib>Davis, J.</creatorcontrib><creatorcontrib>Delaquis, S.</creatorcontrib><creatorcontrib>Der Mesrobian-Kabakian, A.</creatorcontrib><creatorcontrib>DeVoe, R.</creatorcontrib><creatorcontrib>Dilling, J.</creatorcontrib><creatorcontrib>Dolgolenko, A.</creatorcontrib><creatorcontrib>Dolinski, M. J.</creatorcontrib><creatorcontrib>Echevers, J.</creatorcontrib><creatorcontrib>Fairbank Jr., W.</creatorcontrib><creatorcontrib>Fairbank, D.</creatorcontrib><creatorcontrib>Farine, J.</creatorcontrib><creatorcontrib>Feyzbakhsh, S.</creatorcontrib><creatorcontrib>Fierlinger, P.</creatorcontrib><creatorcontrib>Fu, Y. S.</creatorcontrib><creatorcontrib>Fudenberg, D.</creatorcontrib><creatorcontrib>Gautam, P.</creatorcontrib><creatorcontrib>Gornea, R.</creatorcontrib><creatorcontrib>Gratta, G.</creatorcontrib><creatorcontrib>Hall, C.</creatorcontrib><creatorcontrib>Hansen, E. V.</creatorcontrib><creatorcontrib>Hoessl, J.</creatorcontrib><creatorcontrib>Hufschmidt, P.</creatorcontrib><creatorcontrib>Hughes, M.</creatorcontrib><creatorcontrib>Iverson, A.</creatorcontrib><creatorcontrib>Jamil, A.</creatorcontrib><creatorcontrib>Jessiman, C.</creatorcontrib><creatorcontrib>Jewell, M. J.</creatorcontrib><creatorcontrib>Johnson, A.</creatorcontrib><creatorcontrib>Kaufman, L. J.</creatorcontrib><creatorcontrib>Koffas, T.</creatorcontrib><creatorcontrib>Kuchenkov, A.</creatorcontrib><creatorcontrib>Kumar, K. S.</creatorcontrib><creatorcontrib>Lan, Y.</creatorcontrib><creatorcontrib>Larson, A.</creatorcontrib><creatorcontrib>Lenardo, B. G.</creatorcontrib><creatorcontrib>Leonard, D. S.</creatorcontrib><creatorcontrib>Li, G. S.</creatorcontrib><creatorcontrib>Li, S.</creatorcontrib><creatorcontrib>Li, Z.</creatorcontrib><creatorcontrib>Licciardi, C.</creatorcontrib><creatorcontrib>Lin, Y. H.</creatorcontrib><creatorcontrib>MacLellan, R.</creatorcontrib><creatorcontrib>McElroy, T.</creatorcontrib><creatorcontrib>Michel, T.</creatorcontrib><creatorcontrib>Mong, B.</creatorcontrib><creatorcontrib>Moore, D. C.</creatorcontrib><creatorcontrib>Murray, K.</creatorcontrib><creatorcontrib>Njoya, O.</creatorcontrib><creatorcontrib>Nusair, O.</creatorcontrib><creatorcontrib>Odian, A.</creatorcontrib><creatorcontrib>Ostrovskiy, I.</creatorcontrib><creatorcontrib>Perna, A.</creatorcontrib><creatorcontrib>Piepke, A.</creatorcontrib><creatorcontrib>Pocar, A.</creatorcontrib><creatorcontrib>Retière, F.</creatorcontrib><creatorcontrib>Robinson, A. L.</creatorcontrib><creatorcontrib>Rowson, P. C.</creatorcontrib><creatorcontrib>Runge, J.</creatorcontrib><creatorcontrib>Schmidt, S.</creatorcontrib><creatorcontrib>Sinclair, D.</creatorcontrib><creatorcontrib>Skarpaas, K.</creatorcontrib><creatorcontrib>Soma, A. K.</creatorcontrib><creatorcontrib>Stekhanov, V.</creatorcontrib><creatorcontrib>Tarka, M.</creatorcontrib><creatorcontrib>Thibado, S.</creatorcontrib><creatorcontrib>Totev, T. I.</creatorcontrib><creatorcontrib>Tsang, R.</creatorcontrib><creatorcontrib>Veenstra, B.</creatorcontrib><creatorcontrib>Veeraraghavan, V.</creatorcontrib><creatorcontrib>Vogel, P.</creatorcontrib><creatorcontrib>Vuilleumier, J. -L.</creatorcontrib><creatorcontrib>Wagenpfeil, M.</creatorcontrib><creatorcontrib>Watkins, J.</creatorcontrib><creatorcontrib>Weber, M.</creatorcontrib><creatorcontrib>Wen, L. J.</creatorcontrib><creatorcontrib>Wichoski, U.</creatorcontrib><creatorcontrib>Wrede, G.</creatorcontrib><creatorcontrib>Wu, S. X.</creatorcontrib><creatorcontrib>Yahne, D. R.</creatorcontrib><creatorcontrib>Yang, L.</creatorcontrib><creatorcontrib>Yen, Y. -R.</creatorcontrib><creatorcontrib>Zeldovich, O. Ya</creatorcontrib><creatorcontrib>Univ. of Alabama, Tuscaloosa, AL (United States)</creatorcontrib><creatorcontrib>Stanford Univ., CA (United States)</creatorcontrib><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Chinese physics C</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Al Kharusi, S.</au><au>Anton, G.</au><au>Badhrees, I.</au><au>Barbeau, P. S.</au><au>Beck, D.</au><au>Belov, V.</au><au>Bhatta, T.</au><au>Breidenbach, M.</au><au>Brunner, T.</au><au>Cao, G. F.</au><au>Cen, W. R.</au><au>Chambers, C.</au><au>Cleveland, B.</au><au>Coon, M.</au><au>Craycraft, A.</au><au>Daniels, T.</au><au>Darroch, L.</au><au>Daugherty, S. J.</au><au>Davis, J.</au><au>Delaquis, S.</au><au>Der Mesrobian-Kabakian, A.</au><au>DeVoe, R.</au><au>Dilling, J.</au><au>Dolgolenko, A.</au><au>Dolinski, M. J.</au><au>Echevers, J.</au><au>Fairbank Jr., W.</au><au>Fairbank, D.</au><au>Farine, J.</au><au>Feyzbakhsh, S.</au><au>Fierlinger, P.</au><au>Fu, Y. S.</au><au>Fudenberg, D.</au><au>Gautam, P.</au><au>Gornea, R.</au><au>Gratta, G.</au><au>Hall, C.</au><au>Hansen, E. V.</au><au>Hoessl, J.</au><au>Hufschmidt, P.</au><au>Hughes, M.</au><au>Iverson, A.</au><au>Jamil, A.</au><au>Jessiman, C.</au><au>Jewell, M. J.</au><au>Johnson, A.</au><au>Kaufman, L. J.</au><au>Koffas, T.</au><au>Kuchenkov, A.</au><au>Kumar, K. S.</au><au>Lan, Y.</au><au>Larson, A.</au><au>Lenardo, B. G.</au><au>Leonard, D. S.</au><au>Li, G. S.</au><au>Li, S.</au><au>Li, Z.</au><au>Licciardi, C.</au><au>Lin, Y. H.</au><au>MacLellan, R.</au><au>McElroy, T.</au><au>Michel, T.</au><au>Mong, B.</au><au>Moore, D. C.</au><au>Murray, K.</au><au>Njoya, O.</au><au>Nusair, O.</au><au>Odian, A.</au><au>Ostrovskiy, I.</au><au>Perna, A.</au><au>Piepke, A.</au><au>Pocar, A.</au><au>Retière, F.</au><au>Robinson, A. L.</au><au>Rowson, P. C.</au><au>Runge, J.</au><au>Schmidt, S.</au><au>Sinclair, D.</au><au>Skarpaas, K.</au><au>Soma, A. K.</au><au>Stekhanov, V.</au><au>Tarka, M.</au><au>Thibado, S.</au><au>Totev, T. I.</au><au>Tsang, R.</au><au>Veenstra, B.</au><au>Veeraraghavan, V.</au><au>Vogel, P.</au><au>Vuilleumier, J. -L.</au><au>Wagenpfeil, M.</au><au>Watkins, J.</au><au>Weber, M.</au><au>Wen, L. J.</au><au>Wichoski, U.</au><au>Wrede, G.</au><au>Wu, S. X.</au><au>Yahne, D. R.</au><au>Yang, L.</au><au>Yen, Y. -R.</au><au>Zeldovich, O. Ya</au><aucorp>Univ. of Alabama, Tuscaloosa, AL (United States)</aucorp><aucorp>Stanford Univ., CA (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Search for two-neutrino double-beta decay of 136Xe to the $0$$^{+}_{1}$ excited state of 136Ba with the complete EXO-200 dataset</atitle><jtitle>Chinese physics C</jtitle><date>2023-08-11</date><risdate>2023</risdate><volume>47</volume><issue>10</issue><issn>1674-1137</issn><abstract>Abstract
A new search for two-neutrino double-beta (2νββ) decay of 136Xe to the
excited state of 136Ba is performed with the full EXO-200 dataset. A deep learning-based convolutional neural network is used to discriminate signal from background events. Signal detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of two. With the addition of the Phase II dataset taken with an upgraded detector, the median 90% confidence level half-life sensitivity of 2νββ decay to the
state of 136Ba is
yr using a total 136Xe exposure of 234.1 kg yr. No statistically significant evidence for 2νββ decay to the
state is observed, leading to a lower limit of
yr at 90% confidence level, improved by 70% relative to the current world's best constraint.</abstract><cop>United States</cop><pub>IOP Publishing</pub><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1674-1137 |
| ispartof | Chinese physics C, 2023-08, Vol.47 (10) |
| issn | 1674-1137 |
| language | eng |
| recordid | cdi_osti_scitechconnect_1999522 |
| source | IOP Publishing Journals; Institute of Physics IOPscience extra; EZB-FREE-00999 freely available EZB journals; Institute of Physics (IOP) Journals - HEAL-Link; Alma/SFX Local Collection |
| subjects | excited state EXO-200 experiment neutrinoless double beta decay PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
| title | Search for two-neutrino double-beta decay of 136Xe to the $0$$^{+}_{1}$ excited state of 136Ba with the complete EXO-200 dataset |
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