Improved limit on neutrinoless double beta decay of ${}^{76}$Ge from GERDA Phase II

Abstract

The GERDA experiment searches for the lepton number violating neutrinoless double beta decay of ${}^{76}$Ge (${}^{76}$Ge $\to$ ${}^{76}$Se + 2e${}^{-}$) operating bare Ge diodes with an enriched ${}^{76}$Ge fraction in liquid argon. The exposure for BEGe-type detectors is increased threefold with respect to our previous data release. The BEGe detectors feature an excellent background suppression from the analysis of the time profile of the detector signals. In the analysis window a background level of $1.0_{-0.4}^{+0.6}\cdot 10^{-3}$ cts/(keV$\cdot$kg$\cdot$yr) has been achieved; if normalized to the energy resolution this is the lowest ever achieved in any 0$\nu \beta \beta$ experiment. No signal is observed and a new 90 \% C.L. lower limit for the half-life of $8.0\cdot 10^{25}$ yr is placed when combining with our previous data. The median expected sensitivity assuming no signal is $5.8\cdot 10^{25}$ yr.

arXiv comment5 pages, 2 figures

References in corpus (25)

• Search for Majorana Neutrinos near the Inverted Mass Hierarchy Region with KamLAND-Zen
• Status and Future of Nuclear Matrix Elements for Neutrinoless Double-Beta Decay: A Review
• Results on neutrinoless double beta decay of 76Ge from GERDA Phase I
• Phase space factors for double-$\beta$ decay
• Theory of Neutrinos: A White Paper
• Search for Majorana neutrinos with the first two years of EXO-200 data
• Disassembling the Nuclear Matrix Elements of the Neutrinoless 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
• First Results from CUORE: A Search for Lepton Number Violation via $0\nu \beta \beta$ Decay of ${}^{130}$Te
• Background free search for neutrinoless double beta decay with GERDA Phase II
• The GERDA experiment for the search of 0νββ decay in ^{76}Ge
• The Large Enriched Germanium Experiment for Neutrinoless Double Beta Decay (LEGEND)
• Neutrinoless double beta decay and neutrino mass
• Search for Zero-Neutrino Double Beta Decay in 76Ge with the Majorana Demonstrator
• Large-Scale Calculations of the Double-Beta Decay of 76Ge, 130Te, 136Xe, and 150Nd in the Deformed Self-Consistent Skyrme Quasiparticle Random-Phase Approximation
• Shape and pairing fluctuations effects on neutrinoless double beta decay nuclear matrix elements
• Systematic study of nuclear matrix elements in neutrinoless double-beta decay with a beyond mean-field covariant density functional theory
• The EXO-200 detector, part I: Detector design and construction
• Discovery probability of next-generation neutrinoless double-$\beta$ decay experiments
• Neutrinoless Double Beta Decay
• Shell model predictions for ${}^{124}$Sn double-beta decay
• Pulse shape discrimination for GERDA Phase I data
• CUORE-0 detector: design, construction and operation
• Production, characterization and operation of ${}^{76}$Ge enriched BEGe detectors in GERDA

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