476 citations · 2.2k across the 80 of their papers we have counts for
24 papers · 1 filter
An assay-based background projection for the MAJORANA DEMONSTRATOR using Monte Carlo Uncertainty Propagation
I. J. Arnquist, F. T. Avignone, A. S. Barabash +53
The background index is an important quantity which is used in projecting and calculating the half-life sensitivity of neutrinoless double-beta decay () experiments. A novel…
Constraints on the decay of Ta
I. J. Arnquist, F. T. Avignone, A. S. Barabash +56
Ta is a rare nuclear isomer whose decay has never been observed. Its remarkably long lifetime surpasses the half-lives of all other known and electron capture decays d…
Neutrinoless Double Beta Decay
C. Adams, K. Alfonso, C. Andreoiu +229
This White Paper, prepared for the Fundamental Symmetries, Neutrons, and Neutrinos Town Meeting related to the 2023 Nuclear Physics Long Range Plan, makes the case for double beta…
Modeling Backgrounds for the MAJORANA DEMONSTRATOR
C. R. Haufe, I. J. Arnquist, F. T. Avignone +55
The MAJORANA DEMONSTRATOR is a neutrinoless double-beta decay () experiment containing 30 kg of p-type point contact germanium detectors enriched to 88% in 76Ge and $\s…
Search for keV-scale Sterile Neutrinos with first KATRIN Data
M. Aker, D. Batzler, A. Beglarian +128
In this work we present a keV-scale sterile-neutrino search with the first tritium data of the KATRIN experiment, acquired in the commissioning run in 2018. KATRIN performs a spect…
Search for Lorentz-Invariance Violation with the first KATRIN data
M. Aker, D. Batzler, A. Beglarian +130
Some extensions of the Standard Model of Particle Physics allow for Lorentz invariance and Charge-Parity-Time (CPT)-invariance violations. In the neutrino sector strong constraints…
Final Result of the MAJORANA DEMONSTRATOR's Search for Neutrinoless Double- Decay in Ge
I. J. Arnquist, F. T. Avignone, A. S. Barabash +57
The MAJORANA DEMONSTRATOR searched for neutrinoless double- decay () of Ge using modular arrays of high-purity Ge detectors operated in vacuum cryostats in a low-ba…
Search for solar axions via axion-photon coupling with the Majorana Demonstrator
I. J. Arnquist, F. T. Avignone, A. S. Barabash +55
Axions were originally proposed to explain the strong-CP problem in QCD. Through the axion-photon coupling, the Sun could be a major source of axions, which could be measured in so…
Experimental study of 13C(α,n)16O reactions in the Majorana Demonstrator calibration data
MAJORANA Collaboration, I. J. Arnquist, F. T. Avignone +55
Neutron captures and delayed decays of reaction products are common sources of backgrounds in ultra-rare event searches. In this work, we studied C(O reactions in…
KATRIN: Status and Prospects for the Neutrino Mass and Beyond
M. Aker, M. Balzer, D. Batzler +159
The Karlsruhe Tritium Neutrino (KATRIN) experiment is designed to measure a high-precision integral spectrum of the endpoint region of T2 beta decay, with the primary goal of probi…
Search for charge nonconservation and Pauli exclusion principle violation with the Majorana Demonstrator
MAJORANA Collaboration, I. J. Arnquist, F. T. Avignone +55
Charge conservation and the Pauli exclusion principle result from fundamental symmetries in the standard model of particle physics, and are typically taken as axiomatic. High-preci…
New Constraint on the Local Relic Neutrino Background Overdensity with the First KATRIN Data Runs
M. Aker, D. Batzler, A. Beglarian +129
We report on the direct cosmic relic neutrino background search from the first two science runs of the KATRIN experiment in 2019. Beta-decay electrons from a high-purity molecular…
Search for Spontaneous Radiation from Wavefunction Collapse in the Majorana Demonstrator
I. J. Arnquist, F. T. Avignone, A. S. Barabash +51
The Majorana Demonstrator neutrinoless double-beta decay experiment comprises a 44 kg (30 kg enriched in ) array of -type, point-contact germanium detectors. W…
Signatures of muonic activation in the Majorana Demonstrator
I. J. Arnquist, F. T. Avignone, A. S. Barabash +55
Experiments searching for very rare processes such as neutrinoless double-beta decay require a detailed understanding of all sources of background. Signals from radioactive impurit…
Results of the MAJORANA DEMONSTRATOR's Search for Double-Beta Decay of Ge to Excited States of Se
I. S. Guinn, I. J. Arnquist, F. T. Avignone +57
The MAJORANA DEMONSTRATOR is searching for double-beta decay of Ge to excited states (E.S.) in Se using a modular array of high purity Germanium detectors. Ge…
A Search for Neutrinoless Double-Beta Decay in Ge with 26 kg-yr of Exposure from the MAJORANA DEMONSTRATOR
S. I. Alvis, I. J. Arnquist, F. T. Avignone +61
The MAJORANA Collaboration is operating an array of high purity Ge detectors to search for the neutrinoless double-beta decay of Ge. The MAJORANA DEMONSTRATOR consists of 44…
The Majorana Demonstrator Status and Preliminary Results
C. -H. Yu, S. I. Alvis, I. J. Arnquist +63
The Majorana Collaboration is using an array of high-purity Ge detectors to search for neutrinoless double-beta decay in 76Ge. Searches for neutrinoless double-beta decay are under…
Search for Zero-Neutrino Double Beta Decay in 76Ge with the Majorana Demonstrator
C. E. Aalseth, N. Abgrall, E. Aguayo +126
The \MJ\ Collaboration is operating an array of high purity Ge detectors to search for neutrinoless double-beta decay in Ge. The \MJ\ \DEM\ comprises 44.1~kg of Ge detectors…
New limits on Bosonic Dark Matter, Solar Axions, Pauli Exclusion Principle Violation, and Electron Decay from the Majorana Demonstrator
N. Abgrall, I. J. Arnquist, F. T. Avignone +64
We present new limits on exotic keV-scale physics based on 478 kg d of MAJORANA DEMONSTRATOR commissioning data. Constraints at the 90% confidence level are derived on bosonic dark…
Search for Pauli Exclusion Principle Violating Atomic Transitions and Electron Decay with a P-type Point Contact Germanium Detector
N. Abgrall, I. J. Arnquist, F. T. Avignone +66
A search for Pauli-exclusion-principle-violating K-alpha electron transitions was performed using 89.5 kg-d of data collected with a p-type point contact high-purity germanium dete…
Initial Results from the MAJORANA DEMONSTRATOR
S. R. Elliott, N. Abgrall, I. J. Arnquist +64
Neutrinoless double-beta decay searches seek to determine the nature of neutrinos, the existence of a lepton violating process, and the effective Majorana neutrino mass. The {\sc M…
Muon Flux Measurements at the Davis Campus of the Sanford Underground Research Facility with the Majorana Demonstrator Veto System
N. Abgrall, E. Aguayo, F. T. Avignone +71
We report the first measurement of the total MUON flux underground at the Davis Campus of the Sanford Underground Research Facility at the 4850 ft level. Measurements were done wit…
The Majorana Demonstrator: A Search for Neutrinoless Double-beta Decay of 76Ge
Majorana Collaboration, W. Xu, N. Abgrall +63
Neutrinoless double-beta decay is a hypothesized process where in some even-even nuclei it might be possible for two neutrons to simultaneously decay into two protons and two elect…
A Dark Matter Search with MALBEK
G. K. Giovanetti, N. Abgrall, E. Aguayo +84
The MAJORANA DEMONSTRATOR is an array of natural and enriched high purity germanium detectors that will search for the neutrinoless double-beta decay of 76-Ge and perform a search…