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First results from the AMoRE-Pilot neutrinoless double beta decay experiment

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Title
First results from the AMoRE-Pilot neutrinoless double beta decay experiment
Author(s)
Alenkov, V; Bae, HW; Beyer, J; Boiko, RS; Boonin, K; Buzanov, O; Chanthima, N; Cheoun, MK; Chernyak, DM; J. S. Choe; Choi, S; Danevich, FA; Djamal, M; Drung, D; Enss, C; Fleischmann, A; Gangapshev, AM; Gastaldo, L; Gavriljuk, YM; Gezhaev, AM; Grigoryeva, VD; Gurentsov, VI; O. Gylova; Chang Hyon Ha; Ha, DH; Ha, EJ; Hahn, IS; Jang, CH; Eun Ju Jeon; Jin A Jeon; Jo, HS; Kaewkhao, J; Chan Seok Kang; Kang, SJ; Woon Gu Kang; Kazalov, VV; Kempf, S; Khan, A; Khan, S; Deayeon Kim; Kim, GW; Kim, HB; Kim, HJ; Kim, HL; Kim, HS; Kim, I; Seung Cheon Kim; Sang Goon Kim; Kim, SK; So Ra Kim; Kim, WT; Yeongduk Kim; Yong Hamb Kim; Kirdsiri, K; Young Ju Ko; Kobychev, VV; Kornoukhov, V; Kuzminov, VV; Kwon, DH; Chang Lee; Eun Kyoung Lee; H.J. Lee; Hyun Su Lee; Jaison Lee; Lee, JY; Lee, KB; Moo Hyun Lee; Lee, MK; SW Lee; Lee, SW; Lee, SH; Leonard Douglas; Jin Li; Li, J; Li, Y; Limkitjaroenporn, P; Makarov, EP; Oh, SY; Yoomin Oh; SL Olsen; Pabitra, A; Panasenko, SI; Pandey, I; Park, CW; Park, HK; Park, HS; Kang Soon Park; Park, SY; Poda, DV; Polischuk, OG; Prihtiadi, H; Se Jin Ra; Ratkevich, SS; Rooh, G; Sari, MB; Seo, KM; Shin, JW; Keonah Shin; Shlegel, VN; Siyeon, K; Jungho So; Jukyung Son; Srisittipokakun, N; Sujita, K; Tretyak, VI; Wirawan, R; KR Woo; Young Soo Yoon; Yue, Q; Zaman, SU
Publication Date
2019-09
Journal
EUROPEAN PHYSICAL JOURNAL C, v.79, no.9, pp. -
Publisher
SPRINGER
Abstract
The advanced molybdenum-based rare process experiment (AMoRE) aims to search for neutrinoless double beta decay (0νββ) of100Mo with ∼ 100kg of 100Moenrichedmolybdenumembeddedincryogenicdetectorswith adualheatandlightreadout.Atthecurrent,pilotstageofthe AMoRE project we employ six calcium molybdate crystals withatotalmassof1.9kg,producedfrom48Ca-depletedcalcium and 100Mo-enriched molybdenum (48deplCa100MoO4). The simultaneous detection of heat (phonon) and scintillation (photon) signals is realized with high resolution metallic magnetic calorimeter sensors that operate at milli-Kelvin temperatures. This stage of the project is carried out in the Yangyang underground laboratory at a depth of 700 m. We report first results from the AMoRE-Pilot 0νββ search with a 111 kg day live exposure of 48deplCa100MoO4 crystals. No evidence for 0νββ decay of 100Mo is found, and a upper limit is set for the half-life of 0νββ of 100Mo of T0ν 1/2 > 9.5×1022 years at 90% C.L. This limit corresponds to an effective Majorana neutrino mass limit in the range mββ≤(1.2−2.1)eV. © The Author(s) 2019
URI
https://pr.ibs.re.kr/handle/8788114/6643
ISSN
1434-6044
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > Journal Papers (저널논문)
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