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First results from the AMoRE-Pilot neutrinoless double beta decay experiment
Alenkov V., Bae H.W., Beyer J., Boiko R.S., Boonin K., Buzanov O., Chanthima N., Cheoun M.K., Chernyak D.M., Choe J.S., Choi S., Danevich F.A., Djamal M., Drung D., Enss C., Fleischmann A., Gangapshev A.M., Gastaldo L., Gavriljuk Y.M., Gezhaev A.M., Grigorieva V., Gurentsov V.I., Gylova O., Ha C., Ha D.H., Ha E.J., Hahn I.S., Jang C.H., Jeon E.J., Jeon J.A., Jo H.S., Kaewkhao J., Kang C.S., Kang S.J., Kang W.G., Kazalov V.V., Kempf S., Khan A., Khan S., Kim D.Y., Kim G.W., Kim H.B., Kim H.J., Kim H.L., Kim H.S., Kim I., Kim S.C., Kim S.G., Kim S.K., Kim S.R., Kim W.T., Kim Y.D., Kim Y.H., Kirdsiri K., Ko Y.J., Kobychev V.V., Kornoukhov V., Kuzminov V.V., Kwon D.H., Lee C., Lee E.K., Lee H.J., Lee H.S., Lee J.S., Lee J.Y., Lee K.B., Lee M.H., Lee M.K., Lee S.W., Lee S.W., Lee S.H., Leonard D., Li J., Li J., Li Y., Limkitjaroenporn P., Makarov E.P., Oh S.Y., Oh Y.M., Olsen S.L., Pabitra A., Panasenko S.I., Pandey I., Park C.W., Park H.K., Park H.S., Park K.S., Park S.Y., Poda D.V., Polischuk O.G., Prihtiadi H., Ra S.J., Ratkevich S.S., Rooh G., Sari M.B., Seo K.M., Shin J.W., Shin K.A., Shlegel V.N., Siyeon K., So J.H., Son J.K., Srisittipokakun N., Sujita K., Tretyak V.I., Wirawan R., Woo K.R., Yoon Y.S., Yue Q., Zaman S.U.
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2019, The Author(s).The advanced molybdenum-based rare process experiment (AMoRE) aims to search for neutrinoless double beta decay (0 νββ) of 100Mo with ∼100kg of 100Mo-enriched molybdenum embedded in cryogenic detectors with a dual heat and light readout. At the current, pilot stage of the AMoRE project we employ six calcium molybdate crystals with a total mass of 1.9 kg, produced from 48Ca-depleted calcium and 100Mo-enriched molybdenum (48 deplCa 100MoO 4). 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 0 νββ search with a 111 kg day live exposure of 48 deplCa 100MoO 4 crystals. No evidence for 0 νββ decay of 100Mo is found, and a upper limit is set for the half-life of 0 νββ of 100Mo of T1/20ν>9.5×1022years at 90% C.L. This limit corresponds to an effective Majorana neutrino mass limit in the range ⟨mββ⟩≤(1.2-2.1)eV.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]This research is supported by Grant No. IBS-R016-D1 and IBS-R016-G1. One of author (VK) was also supported in the framework of the Moscow Engineering Physics Institute Academic Excellence Project (Contract 02.a03.21.0005, August 27, 2013). The group from the Institute for Nuclear Research (Kyiv, Ukraine) was supported in part by the program of the National Academy of Sciences of Ukraine “Fundamental research on high-energy physics and nuclear physics (international cooperation)”.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1140/epjc/s10052-019-7279-1[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]