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

Abstract

The Advanced Molybdenum-based Rare process Experiment (AMoRE) aims to search for neutrinoless double beta decay (0$\nu \beta \beta$) 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 (${}^{48\text{depl}}$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 $0\nu \beta \beta$ search with a 111 kg$\cdot$d live exposure of ${}^{48\text{depl}}$Ca${}^{100}$MoO${}_4$ crystals. No evidence for $0\nu \beta \beta$ decay of ${}^{100}$Mo is found, and a upper limit is set for the half-life of 0$\nu \beta \beta$ of ${}^{100}$Mo of $T_{1/2}^{0\nu }>9.5\times 10^{22}$ y at 90% C.L.. This limit corresponds to an effective Majorana neutrino mass limit in the range $⟨m_{\beta \beta }⟩\le (1.2-2.1)$ eV.

References in corpus (31)

• Evidence for oscillation of atmospheric neutrinos
• A Unified Approach to the Classical Statistical Analysis of Small Signals
• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• Search for Majorana Neutrinos near the Inverted Mass Hierarchy Region with KamLAND-Zen
• Global analysis of neutrino masses, mixings and phases: entering the era of leptonic CP violation searches
• Theory of neutrinoless double beta decay
• Phase space factors for double-$\beta$ decay
• $0\nu \beta \beta$ and $2\nu \beta \beta$ nuclear matrix elements in the interacting boson model with isospin restoration
• $0\nu \beta \beta$ and $2\nu \beta \beta$ nuclear matrix elements, QRPA, and isospin symmetry restoration
• Background free search for neutrinoless double beta decay with GERDA Phase II
• Semi-empirical calculation of quenching factors for ions in scintillators
• The event generator DECAY4 for simulation of double beta processes and decay of radioactive nuclei
• Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector
• Neutrinoless double beta decay and neutrino mass
• Search for Neutrinoless Double-Beta Decay of ${}^{130}$Te with CUORE-0
• Shape and pairing fluctuations effects on neutrinoless double beta decay nuclear matrix elements
• Average and recommended half-life values for two neutrino double beta decay
• Development of ${}^{100}$Mo-containing scintillating bolometers for a high-sensitivity neutrinoless double-beta decay search
• A Search for Neutrinoless Double-Beta Decay in ${}^{76}$Ge with 26 kg-yr of Exposure from the MAJORANA DEMONSTRATOR
• Development of CaMoO4 crystal scintillators for double beta decay experiment with 100-Mo
• Potential of a next generation neutrinoless double beta decay experiment based on ZnMoO4 scintillating bolometers
• First Result on the Neutrinoless Double Beta Decay of ${}^{82}$Se with CUPID-0
• Nuclear matrix element of neutrinoless double-$\beta$ decay: Relativity and short-range correlations
• Initial performance of the CUORE-0 experiment
• CUPID-0: the first array of enriched scintillating bolometers for 0νββdecay investigations
• A novel technique of particle identification with bolometric detectors
• Neutrinoless $\beta \beta$ decay transition matrix elements within mechanisms involving light Majorana neutrinos, classical Majorons and sterile neutrinos
• Random coincidence of $2\nu 2\beta$ decay events as a background source in bolometric $0\nu 2\beta$ decay experiments
• Technical Design Report for the AMoRE $0\nu \beta \beta$ Decay Search Experiment
• ${}^{100}$Mo-enriched Li${}_2$MoO${}_4$ scintillating bolometers for $0\nu 2\beta$ decay search: from LUMINEU to CUPID-0/Mo projects
• A multi-isotope $0\nu 2\beta$ bolometric experiment

Cited by in corpus (39)

• Final Results of GERDA on the Search for Neutrinoless Double-$\beta$ Decay
• Analysis of Light Neutrino Exchange and Short-Range Mechanisms in $0\nu \beta \beta$ Decay
• New Limit for Neutrinoless Double-Beta Decay of ${}^{100}$Mo from the CUPID-Mo Experiment
• Sterile neutrinos and neutrinoless double beta decay in effective field theory
• Shell-model calculation of ${}^{100}$Mo double-$\beta$ decay
• Superconducting detectors for rare event searches in experimental astroparticle physics
• Status and performance of the AMoRE-I experiment on neutrinoless double beta decay
• Performance of a Large Area Photon Detector For Rare Event Search Applications
• AMoRE: A search for neutrinoless double-beta decay of 100Mo using low-temperature molybdenum-containing crystal detectors
• Improved limit on neutrinoless double beta decay of ${}^{100}$Mo from AMoRE-I
• $\gamma \gamma$ decay as a probe of neutrinoless $\beta \beta$ decay nuclear matrix elements
• First measurements of remoTES cryogenic calorimeters: easy-to-fabricate particle detectors for a wide choice of target materials
• CUPID, the CUORE Upgrade with Particle IDentification
• Neutron background measurement for rare event search experiments in the YangYang Underground Laboratory
• Radiopurity of a kg-scale PbWO${}_4$ cryogenic detector produced from archaeological Pb for the RES-NOVA experiment
• Boosting background suppression in the NEXT experiment through Richardson-Lucy deconvolution
• Hiding neutrinoless double beta decay in the minimal seesaw mechanism
• Cosmogenic activation in double beta decay experiments
• Tribimaximal Mixing in the $SU(5)\times {\mathcal{T}}_{13}$ Texture
• Na-based crystal scintillators for next-generation rare event searches
• Neutrinoless Double Beta Decay with Germanium Detectors: 10${}^{26}$ yr and Beyond
• Measurement of ${}^{216}$Po half-life with the CUPID-0 experiment
• Alpha backgrounds in the AMoRE-Pilot experiment
• Probing light sterile neutrinos in left-right symmetric models with displaced vertices and neutrinoless double beta decay
• Overlap of electron shells in $\beta$ and double-$\beta$ decays
• A lab scale experiment for keV sterile neutrino search
• Double Beta Decay Experiments at Canfranc Underground Laboratory
• A feasibility study of extruded plastic scintillator embedding WLS fiber for AMoRE-II muon veto
• New limits on double-beta decay of ${}^{190}$Pt and ${}^{198}$Pt
• Measurement of the Background Activities of a 100Mo-enriched powder sample for AMoRE crystal material using a single high purity germanium detector
• Neutrino mass measurements using cryogenic detectors
• ZnO-based scintillating bolometers: New prospects to study double beta decay of ${}^{64}$Zn
• Measurement of the Background Activities of a 100Mo-enriched Powder Sample for an AMoRE Crystal Material by using Fourteen High-Purity Germanium Detectors
• Development of MMC-based lithium molybdate cryogenic calorimeters for AMoRE-II
• Scintillation properties of $({\mathrm{Zn}}_{0.9}{\mathrm{Pb}}_{0.1})({\mathrm{W}}_{0.9}{\mathrm{Mo}}_{0.1}){\mathrm{O}}_4$ and $({\mathrm{Zn}}_{0.9}{\mathrm{Cd}}_{0.1})({\mathrm{W}}_{0.9}{\mathrm{Mo}}_{0.1}){\mathrm{O}}_4$ mixed crystals
• Cryogenic light detectors with thermal signal amplification for $0\nu \beta \beta$ search experiments
• Advanced fabrication process for particle absorbers of highly pure electroplated gold for microcalorimeter applications
• Improving radioactive contaminant identification through the analysis of delayed coincidences with an $\alpha$-spectrometer
• $\rho$ exchange contribution to neutrinoless double beta decay