F. Edzards
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View article: Investigations of charge collection and signal timing in a multi-pixel silicon drift detector
Investigations of charge collection and signal timing in a multi-pixel silicon drift detector Open
Sterile neutrinos are a minimal extension of the Standard Model of particle physics and a promising candidate for dark matter if their mass is in the keV-range. The Karlsruhe Tritium Neutrino experiment (KATRIN), equipped with a novel mult…
View article: Direct neutrino-mass measurement based on 259 days of KATRIN data
Direct neutrino-mass measurement based on 259 days of KATRIN data Open
That neutrinos carry a nonvanishing rest mass is evidence of physics beyond the Standard Model of elementary particles. Their absolute mass holds relevance in fields from particle physics to cosmology. We report on the search for the effec…
View article: Investigation of electron backscattering on silicon drift detectors for the sterile neutrino search with TRISTAN
Investigation of electron backscattering on silicon drift detectors for the sterile neutrino search with TRISTAN Open
Sterile neutrinos are hypothetical particles in the minimal extension of the Standard Model of Particle Physics. They could be viable dark matter candidates if they have a mass in the keV range. The Karlsruhe tritium neutrino (KATRIN) expe…
View article: Investigations of Charge Collection and Signal Timing in a multi-pixel Silicon Drift Detector
Investigations of Charge Collection and Signal Timing in a multi-pixel Silicon Drift Detector Open
Sterile neutrinos are a minimal extension of the Standard Model of particle physics and a promising candidate for dark matter if their mass is in the keV-range. The Karlsruhe Tritium Neutrino experiment (KATRIN), equipped with a novel mult…
View article: A thermionic electron gun to characterize silicon drift detectors with electrons
A thermionic electron gun to characterize silicon drift detectors with electrons Open
The TRISTAN detector is a new detector for electron spectroscopy at the Karlsruhe Tritium Neutrino (KATRIN) experiment. The semiconductor detector utilizes the silicon drift detector technology and will enable the precise measurement of th…
View article: Development of a silicon drift detector array to search for keV-scale sterile neutrinos with the KATRIN experiment
Development of a silicon drift detector array to search for keV-scale sterile neutrinos with the KATRIN experiment Open
Sterile neutrinos in the keV mass range present a viable candidate for dark matter. They can be detected through single β -decay, where they cause small spectral distortions. The Karlsruhe Tritium Neutrino (KATRIN) experiment aims to searc…
View article: Development of a Silicon Drift Detector Array to Search for keV-scale Sterile Neutrinos with the KATRIN Experiment
Development of a Silicon Drift Detector Array to Search for keV-scale Sterile Neutrinos with the KATRIN Experiment Open
Sterile neutrinos in the keV mass range present a viable candidate for dark matter. They can be detected through single $β$ decay, where they cause small spectral distortions. The Karlsruhe Tritium Neutrino (KATRIN) experiment aims to sear…
View article: Characterization measurements of the TRISTAN multi-pixel silicon drift detector
Characterization measurements of the TRISTAN multi-pixel silicon drift detector Open
Sterile neutrinos are a minimal extension of the standard model of particle physics. A laboratory-based approach to search for this particle is via tritium β-decay, where a sterile neutrino would cause a kink-like spectral distortion. The …
View article: New Constraint on the Local Relic Neutrino Background Overdensity with the First KATRIN Data Runs
New Constraint on the Local Relic Neutrino Background Overdensity with the First KATRIN Data Runs Open
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 tritium gas source are analyzed by a high-resolution MAC-E …
View article: Improved eV-scale sterile-neutrino constraints from the second KATRIN measurement campaign
Improved eV-scale sterile-neutrino constraints from the second KATRIN measurement campaign Open
We present the results of the light sterile neutrino search from the second Karlsruhe Tritium Neutrino (KATRIN) measurement campaign in 2019. Approaching nominal activity, 3.76×106 tritium β-electrons are analyzed in an energy window exten…
View article: New Constraint on the Local Relic Neutrino Background Overdensity with the First KATRIN Data Runs
New Constraint on the Local Relic Neutrino Background Overdensity with the First KATRIN Data Runs Open
We report on the direct search for cosmic relic neutrinos using data acquired during the first two science campaigns of the KATRIN experiment in 2019. Beta-decay electrons from a high-purity molecular tritium gas source are analyzed by a h…
View article: TRISTAN: A novel detector for searching keV-sterile neutrinos at the KATRIN experiment
TRISTAN: A novel detector for searching keV-sterile neutrinos at the KATRIN experiment Open
Sterile neutrinos are a minimal extension of the Standard Model of Particle Physics. A laboratory-based approach to search for this particle is via tritium beta-decay, where a sterile neutrino would cause a kink-like spectral distortion. T…
Surface Characterization of P-Type Point Contact Germanium Detectors Open
P-type point contact (PPC) germanium detectors are used in rare event and low-background searches, including neutrinoless double beta (0νββ) decay, low-energy nuclear recoils, and coherent elastic neutrino-nucleus scattering. The detectors…
Surface Characterization of P-Type Point Contact Germanium Detectors Open
P-type point contact (PPC) germanium detectors are used in rare event and low-background searches, including neutrinoless double beta (0νββ) decay, low-energy nuclear recoils, and coherent elastic neutrino-nucleus scattering. The detectors…
View article: The design, construction, and commissioning of the KATRIN experiment
The design, construction, and commissioning of the KATRIN experiment Open
The KArlsruhe TRItium Neutrino (KATRIN) experiment, which aims to make a direct and model-independent determination of the absolute neutrino mass scale, is a complex experiment with many components. More than 15 years ago, we published a t…
View article: Analysis methods for the first KATRIN neutrino-mass measurement
Analysis methods for the first KATRIN neutrino-mass measurement Open
We report on the dataset, data handling, and detailed analysis techniques of the first neutrino-mass measurement by the Karlsruhe Tritium Neutrino (KATRIN) experiment, which probes the absolute neutrino-mass scale via the β-decay kinematic…
The Future of Neutrinoless Double Beta Decay Searches with Germanium Detectors Open
The observation of neutrinoless double beta (0 v ββ) decay would establish the Majorana nature of neutrinos and explicitly show that lepton number conservation is violated. In their search for the rare decay in the isotope 76 Ge, the GERDA…
Investigation of ASIC-based signal readout electronics for LEGEND-1000 Open
LEGEND, the Large Enriched Germanium Experiment for Neutrinoless ββ Decay, is a ton-scale experimental program to search for neutrinoless double beta (0νββ) decay in the isotope 76Ge with an unprecedented sensitivity. Building on the succe…
View article: Quantitative Long-Term Monitoring of the Circulating Gases in the KATRIN Experiment Using Raman Spectroscopy
Quantitative Long-Term Monitoring of the Circulating Gases in the KATRIN Experiment Using Raman Spectroscopy Open
The Karlsruhe Tritium Neutrino (KATRIN) experiment aims at measuring the effective electron neutrino mass with a sensitivity of 0.2 eV/c2, i.e., improving on previous measurements by an order of magnitude. Neutrino mass data taking with KA…
View article: High-resolution spectroscopy of gaseous $^{83m}$Kr conversion electrons with the KATRIN experiment
High-resolution spectroscopy of gaseous $^{83m}$Kr conversion electrons with the KATRIN experiment Open
In this work, we present the first spectroscopic measurements of conversion electrons originating fromthe decay ofmetastable gaseous $^{83m}$Kr with the Karlsruhe Tritium Neutrino (KATRIN) experiment. The obtained results represent one of …
View article: Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN
Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN Open
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 a high-purity gaseous molecular tritium source are energy …
View article: The KATRIN superconducting magnets: overview and first performance results
The KATRIN superconducting magnets: overview and first performance results Open
The KATRIN experiment aims for the determination of the effective electron anti-neutrino mass from the tritium beta-decay with an unprecedented sub-eV sensitivity. The strong magnetic fields, designed for up to 6~T, adiabatically guide β-e…
Development Of Highly Integrated Low-Mass Signal Readout Electronics For The Legend Experiment Open
The LEGEND experiment is a future large-scale experiment that will search for neutrinoless double beta decay (0νββ 0\nu\beta\beta ) in the isotope 76 ^{76} Ge using high purity germanium detectors. Its observation would establish lepton nu…