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KATRIN Sensitivity to keV Sterile Neutrinos with the TRISTAN Detector Upgrade
H. Acharya, M. Aker, D. Batzler +127
Sterile neutrinos in the keV mass range are a well-motivated extension of the Standard Model and viable dark matter candidates. Their existence can be probed in laboratory experime…
Improved eV-scale Sterile-Neutrino Constraints from the Second KATRIN Measurement Campaign
M. Aker, D. Batzler, A. Beglarian +128
We present the results of the light sterile neutrino search from the second KATRIN measurement campaign in 2019. Approaching nominal activity, tritium -electr…
First direct neutrino-mass measurement with sub-eV sensitivity
M. Aker, A. Beglarian, J. Behrens +125
We report the results of the second measurement campaign of the Karlsruhe Tritium Neutrino (KATRIN) experiment. KATRIN probes the effective electron anti-neutrino mass, , via…
Analysis methods for the first KATRIN neutrino-mass measurement
M. Aker, K. Altenmüller, A. Beglarian +126
We report on the data set, data handling, and detailed analysis techniques of the first neutrino-mass measurement by the Karlsruhe Tritium Neutrino (KATRIN) experiment, which probe…
Bound on 3+1 active-sterile neutrino mixing from the first four-week science run of KATRIN
M. Aker, K. Altenmueller, A. Beglarian +126
We report on the light sterile neutrino search from the first four-week science run of the KATRIN experiment in~2019. Beta-decay electrons from a high-purity gaseous molecular trit…
Search for solar neutrinos and the diffuse supernova neutrino background using all three phases of the Sudbury Neutrino Observatory
B. Aharmim, S. N. Ahmed, A. E. Anthony +129
A search has been performed for neutrinos from two sources, the reaction in the solar fusion chain and the component of the diffuse supernova neutrino background (…
Cosmogenic Neutron Production at the Sudbury Neutrino Observatory
B. Aharmim, S. N. Ahmed, A. E. Anthony +128
Neutrons produced in nuclear interactions initiated by cosmic-ray muons present an irreducible background to many rare-event searches, even in detectors located deep underground. M…
An improved upper limit on the neutrino mass from a direct kinematic method by KATRIN
M. Aker, K. Altenmüller, M. Arenz +205
We report on the neutrino mass measurement result from the first four-week science run of the Karlsruhe Tritium Neutrino experiment KATRIN in spring 2019. Beta-decay electrons from…
Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory
SNO Collaboration, B. Aharmim, S. N. Ahmed +129
Neutron production in GeV-scale neutrino interactions is a poorly studied process. We have measured the neutron multiplicities in atmospheric neutrino interactions in the Sudbury N…
Constraints on Neutrino Lifetime from the Sudbury Neutrino Observatory
SNO Collaboration, B. Aharmim, S. N. Ahmed +128
The long baseline between the Earth and the Sun makes solar neutrinos an excellent test beam for exploring possible neutrino decay. The signature of such decay would be an energy-d…
Tests of Lorentz invariance at the Sudbury Neutrino Observatory
SNO Collaboration, B. Aharmim, S. N. Ahmed +131
Experimental tests of Lorentz symmetry in systems of all types are critical for ensuring that the basic assumptions of physics are well-founded. Data from all phases of the Sudbury…
The search for neutron-antineutron oscillations at the Sudbury Neutrino Observatory
SNO Collaboration, B. Aharmim, S. N. Ahmed +122
Tests on symmetry breaking models are important probes to search for new physics. One proposed model with involves the oscillations of a neutron to an antineutron.…
Measurement of the Cosmic Ray and Neutrino-Induced Muon Flux at the Sudbury Neutrino Observatory
SNO Collaboration
Results are reported on the measurement of the atmospheric neutrino-induced muon flux at a depth of 2 kilometers below the Earth's surface from 1229 days of operation of the Sudbur…
A Search for Periodicities in the B Solar Neutrino Flux Measured by the Sudbury Neutrino Observatory
SNO Collaboration
A search has been made for sinusoidal periodic variations in the B solar neutrino flux using data collected by the Sudbury Neutrino Observatory over a 4-year time interval. The…
Electron Antineutrino Search at the Sudbury Neutrino Observatory
SNO Collaboration
Upper limits on the \nuebar flux at the Sudbury Neutrino Observatory have been set based on the \nuebar charged-current reaction on deuterium. The reaction produces a positron and…
The Majorana Neutrinoless Double-Beta Decay Experiment
Aalseth
The proposed Majorana double-beta decay experiment is based on an array of segmented intrinsic Ge detectors with a total mass of 500 kg of Ge isotopically enriched to 86% in 76Ge.…
Constraints on Nucleon Decay via "Invisible" Modes from the Sudbury Neutrino Observatory
SNO Collaboration
Data from the Sudbury Neutrino Observatory have been used to constrain the lifetime for nucleon decay to ``invisible'' modes, such as n -> 3 nu. The analysis was based on a search…
Comment on "Evidence for Neutrinoless Double Beta Decay"
C. E. Aalseth, F. T. Avignone, A. Barabash +23
We comment on the recent claim for the experimental observation of neutrinoless double-beta decay. We discuss several limitations in the analysis provided in that paper and conclud…
The Majorana Ge-76 Double-Beta Decay Project
The Majorana Collaboration, C. E. Aalseth, D. Anderson +29
The Majorana Experiment is a next-generation Ge-76 double-beta decay search. It will employ 500 kg of Ge, isotopically enriched to 86% in Ge-76, in the form of 200 detectors in a c…
First Neutrino Observations from the Sudbury Neutrino Observatory
A. B. McDonald
The first neutrino observations from the Sudbury Neutrino Observatory are presented from preliminary analyses. Based on energy, direction and location, the data in the region of in…