First Results from the AMoRE-Pilot neutrinoless double beta decay experiment
Creators: name: Alenkov, V.
name: Bae, H. W.
name: Beyer, J.
name: Boiko, R. S.
name: Boonin, K.
name: Buzanov, O.
name: Chanthima, N.
name: Cheoun, M. K.
name: Chernyak, D. M.
name: Choe, J. S.
name: Choi, S.
name: Danevich, F. A.
name: Djamal, M.
name: Drung, D.
name: Enss, C.
name: Fleischmann, A.
name: Gangapshev, A. M.
name: Gastaldo, L.
name: Gavriljuk, Yu. M.
name: Gezhaev, A. M.
name: Grigoryeva, V. D.
name: Gurentsov, V. I.
name: Gylova, O.
name: Ha, C.
name: Ha, D. H.
name: Ha, E. J.
name: Hahn, I. S.
name: Jang, C. H.
name: Jeon, E. J.
name: Jeon, J. A.
name: Jo, H. S.
name: Kaewkhao, J.
name: Kang, C. S.
name: Kang, S. J.
name: Kang, W. G.
name: Kazalov, V. V.
name: Khan, A.
name: Khan, S.
name: Kim, D. Y.
name: Kim, G. W.
name: Kim, H. B.
name: Kim, H. J.
name: Kim, H. L.
name: Kim, H. S.
name: Kim, I.
name: Kim, S. C.
name: Kim, S. G.
name: Kim, S. K.
name: Kim, S. R.
name: Kim, W. T.
name: Kim, Y. D.
name: Kim, Y. H.
name: Kirdsiri, K.
name: Ko, Y. J.
name: Kobychev, V. V.
name: Kornoukhov, V.
name: Kuzminov, V. V.
name: Kwon, D. H.
name: Lee, C.
name: Lee, E. K.
name: Lee, H. J.
name: Lee, H. S.
name: Lee, J. S.
name: Lee, J. Y.
name: Lee, K. B.
name: Lee, M. H.
name: Lee, M. K.
name: Lee, S. W.
name: Lee, S. W.
name: Lee, S. H.
name: Leonard, D.
name: Li, J.
name: Li, J.
name: Li, Y.
name: Limkitjaroenporn, P.
name: Makarov, E. P.
name: Oh, S. Y.
name: Oh, Y. M.
name: Olsen, S. L.
name: Pabitra, A.
name: Panasenko, S. I.
name: Pandey, I.
name: Park, C. W.
name: Park, H. K.
name: Park, H. S.
name: Park, K. S.
name: Park, S. Y.
name: Poda, D. V.
name: Polischuk, O. G.
name: Prihtiadi, H.
name: Ra, S. J.
name: Ratkevich, S. S.
name: Rooh, G.
name: Sari, M. B.
name: Seo, K. M.
name: Shin, J. W.
name: Shin, K. A.
name: Shlegel, V. N.
name: Siyeon, K.
name: So, J. H.
name: Son, J. K.
name: Srisittipokakun, N.
name: Sujita, K.
name: Tretyak, V. I.
name: Wirawan, R.
name: Woo, K. R.
name: Yoon, Y. S.
name: Yue, Q.
name: Zaman, S. U.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: The Advanced Molybdenum-based Rare process Experiment (AMoRE) aims to search for neutrinoless double beta decay (0$νββ$) of $^{100}$Mo with $\sim$100 kg of $^{100}$Mo-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 $^{48}$Ca-depleted calcium and $^{100}$Mo-enriched molybdenum ($^{48\textrm{depl}}$Ca$^{100}$MoO$_4$). 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 $0νββ$ search with a 111 kg$\cdot$d live exposure of $^{48\textrm{depl}}$Ca$^{100}$MoO$_4$ crystals. No evidence for $0νββ$ decay of $^{100}$Mo is found, and a upper limit is set for the half-life of 0$νββ$ of $^{100}$Mo of $T^{0ν}_{1/2} &gt; 9.5\times10^{22}$ y at 90% C.L.. This limit corresponds to an effective Majorana neutrino mass limit in the range $\langle m_{ββ}\rangle\le(1.2-2.1)$ eV.