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

  • V. Alenkov
  • , H. W. Bae
  • , J. Beyer
  • , R. S. Boiko
  • , K. Boonin
  • , O. Buzanov
  • , N. Chanthima
  • , M. K. Cheoun
  • , D. M. Chernyak
  • , J. S. Choe
  • , S. Choi
  • , F. A. Danevich
  • , M. Djamal
  • , D. Drung
  • , C. Enss
  • , A. Fleischmann
  • , A. M. Gangapshev
  • , L. Gastaldo
  • , Yu M. Gavriljuk
  • , A. M. Gezhaev
  • Veronika Grigorieva, V. I. Gurentsov, O. Gylova, C. Ha, D. H. Ha, E. J. Ha, I. S. Hahn, C. H. Jang, E. J. Jeon, J. A. Jeon, H. S. Jo, J. Kaewkhao, C. S. Kang, S. J. Kang, W. G. Kang, V. V. Kazalov, S. Kempf, A. Khan, S. Khan, 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. Kim, K. Kirdsiri, Y. J. Ko, V. V. Kobychev, V. Kornoukhov, V. V. Kuzminov, D. H. Kwon, 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. Lee, D. Leonard, J. Li, J. Li, Y. Li, P. Limkitjaroenporn, E. P. Makarov, S. Y. Oh, Y. M. Oh, S. L. Olsen, A. Pabitra, S. I. Panasenko, I. Pandey, C. W. Park, H. K. Park, H. S. Park, K. S. Park, S. Y. Park, D. V. Poda, O. G. Polischuk, H. Prihtiadi, S. J. Ra, S. S. Ratkevich, G. Rooh, M. B. Sari, K. M. Seo, J. W. Shin, K. A. Shin, V. N. Shlegel, K. Siyeon, J. H. So, J. K. Son, N. Srisittipokakun, K. Sujita, V. I. Tretyak, R. Wirawan, K. R. Woo, Y. S. Yoon, Q. Yue, S. U. Zaman
  • JSC FOMOS-Materials
  • Kyungpook National University
  • Physikalisch-Technische Bundesanstalt
  • NASU - Institute of Nuclear Research
  • Nakhon Pathom Rajabhat University
  • Soongsil University
  • Institute for Basic Science
  • Seoul National University
  • Bandung Institute of Technology
  • Heidelberg University 
  • Baksan Neutrino Observatory of INR RAS
  • RAS - Nikolaev Institute of Inorganic Chemistry, Siberian Branch
  • Ewha Womans University
  • Chung-Ang University
  • Semyung University
  • Kohat University of Science and Technology
  • Sejong University
  • Korea Research Institute
  • Los Alamos National Laboratory
  • University of Science and Technology UST
  • Moscow Engineering Physics Institute
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • Tsinghua University
  • V. N. Karazin Kharkiv National University
  • Korea University
  • Abdul Wali Khan University Mardan
  • Novosibirsk State Technical University
  • University of Mataram

Research output: Contribution to journalArticlepeer-review

115 Scopus citations

Abstract

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.

Original languageEnglish
Article number791
JournalEuropean Physical Journal C
Volume79
Issue number9
DOIs
StatePublished - 1 Sep 2019

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