A. Fleischmann
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View article: Ultra high-resolution γ-spectroscopy of 225Ac and its daughter radionuclides using MMC detectors
Ultra high-resolution γ-spectroscopy of 225Ac and its daughter radionuclides using MMC detectors Open
View article: Improved limit on the effective electron neutrino mass with the ECHo-1k experiment
Improved limit on the effective electron neutrino mass with the ECHo-1k experiment Open
The effective electron neutrino mass can be determined by analyzing the endpoint region of the $^{163}$Ho electron capture spectrum, provided a measurement with high energy resolution and high statistics using calorimetric techniques. Here…
View article: Quantum Electrodynamics in Strong Electromagnetic Fields: Substate Resolved <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi mathvariant="normal">K</mml:mi><mml:mrow><mml:mi>α</mml:mi></mml:mrow></mml:mrow></mml:math> Transition Energies in Heliumlike Uranium
Quantum Electrodynamics in Strong Electromagnetic Fields: Substate Resolved Transition Energies in Heliumlike Uranium Open
Using novel metallic magnetic calorimeter detectors at the CRYRING@ESR, we recorded x-ray spectra of stored and electron cooled heliumlike uranium (U90+) with an unmatched spectral resolution of close to 90 eV. This allowed for an accurate…
View article: Publisher Erratum: Development of MMC-based lithium molybdate cryogenic calorimeters for AMoRE-II
Publisher Erratum: Development of MMC-based lithium molybdate cryogenic calorimeters for AMoRE-II Open
View article: Development of MMC-based lithium molybdate cryogenic calorimeters for AMoRE-II
Development of MMC-based lithium molybdate cryogenic calorimeters for AMoRE-II Open
The AMoRE collaboration searches for neutrinoless double beta decay of $$^{100}$$ Mo using molybdate scintillating crystals via low temperature thermal calorimetric detection. The early phases of the experiment, AMoRE-pilot and AMoRE-I,…
View article: Projected background and sensitivity of AMoRE-II
Projected background and sensitivity of AMoRE-II Open
AMoRE-II aims to search for neutrinoless double beta decay ( $$0\nu \beta \beta $$ ) with an array of 423 $$\hbox {Li}_2^{100}\hbox {MoO}_4$$ crystals operating in the cryogenic system as the main phase of the Advanced Molyb…
View article: Development of MMC-based lithium molybdate cryogenic calorimeters for AMoRE-II
Development of MMC-based lithium molybdate cryogenic calorimeters for AMoRE-II Open
The AMoRE collaboration searches for neutrinoless double beta decay of $^{100}$Mo using molybdate scintillating crystals via low temperature thermal calorimetric detection. The early phases of the experiment, AMoRE-pilot and AMoRE-I, have …
View article: Improved limit on neutrinoless double beta decay of $^{100}$Mo from AMoRE-I
Improved limit on neutrinoless double beta decay of $^{100}$Mo from AMoRE-I Open
AMoRE searches for the signature of neutrinoless double beta decay of $^{100}$Mo with a 100 kg sample of enriched $^{100}$Mo. Scintillating molybdate crystals coupled with a metallic magnetic calorimeter operate at milli-Kelvin temperature…
View article: Quantum Electrodynamics in Strong Electromagnetic Fields: Substate Resolved K$α$ Transition Energies in Helium-like Uranium
Quantum Electrodynamics in Strong Electromagnetic Fields: Substate Resolved K$α$ Transition Energies in Helium-like Uranium Open
Using novel metallic magnetic calorimeter detectors at the CRYRING@ESR, we recorded X-ray spectra of stored and electron cooled helium-like uranium (U$^{90+}$) with an unmatched spectral resolution of close to 90 eV. This allowed for an ac…
View article: Projected background and sensitivity of AMoRE-II
Projected background and sensitivity of AMoRE-II Open
AMoRE-II aims to search for neutrinoless double beta decay with an array of 423 Li$_2$$^{100}$MoO$_4$ crystals operating in the cryogenic system as the main phase of the Advanced Molybdenum-based Rare process Experiment (AMoRE). AMoRE has …
View article: Radioassay of the materials for AMoRE-II experiment
Radioassay of the materials for AMoRE-II experiment Open
The AMoRE-II experiment will search for the 0 νββ decay of 100 Mo nuclei using molybdate crystal scintillators, operating at milli-Kelvin (mK) temperatures, with a total of 80 kg of 100 Mo. The background goal for the experiment is 10 –4 c…
View article: MMC Array to Study X-Ray Transitions in Muonic Atoms
MMC Array to Study X-Ray Transitions in Muonic Atoms Open
The QUARTET collaboration aims to significantly improve the precision of the absolute nuclear charge radii of light nuclei from Li to Ne by using an array of metallic magnetic calorimeters to perform high-precision X-ray spectroscopy of lo…
View article: Application of a metallic-magnetic calorimeter for high-resolution x-ray spectroscopy of Fe at an EBIT
Application of a metallic-magnetic calorimeter for high-resolution x-ray spectroscopy of Fe at an EBIT Open
In this work, we present an experiment conducted at the S-EBIT-I ion trap of GSI. It involved the study of ion-electron collisions of Fe and Ba ions in various charge states with the electron beam. Characteristic x-ray radiation emitted du…
View article: Towards Precision Muonic X-ray Measurements of Charge Radii of Light Nuclei
Towards Precision Muonic X-ray Measurements of Charge Radii of Light Nuclei Open
We, the QUARTET Collaboration, propose an experiment to measure the nuclear charge radii of light elements with up to 20 times higher accuracy. These are essential both for understanding nuclear physics at low energies, and for experimenta…
View article: Background study of the AMoRE-pilot experiment
Background study of the AMoRE-pilot experiment Open
We report a study on the background of the Advanced Molybdenum-Based Rare process Experiment (AMoRE), a search for neutrinoless double beta decay (\znbb) of $^{100}$Mo. The pilot stage of the experiment was conducted using $\sim$1.9 kg of …
View article: MMC Array to Study X-ray Transitions in Muonic Atoms
MMC Array to Study X-ray Transitions in Muonic Atoms Open
The QUARTET collaboration aims to significantly improve the precision of the absolute nuclear charge radii of light nuclei from Li to Ne by using an array of metallic magnetic calorimeters to perform high-precision X-ray spectroscopy of lo…
View article: Measuring magnetic 1/f noise in superconducting microstructures and the fluctuation-dissipation theorem
Measuring magnetic 1/f noise in superconducting microstructures and the fluctuation-dissipation theorem Open
The performance of superconducting devices like qubits, superconducting quantum interference devices (SQUIDs), and particle detectors is often limited by finite coherence times and noise. Various types of slow fluctuators in the Josep…
View article: High-resolution X-ray emission study for Xe$$^{54+}$$ on Xe collisions
High-resolution X-ray emission study for Xe$$^{54+}$$ on Xe collisions Open
We report on an experiment conducted at the ESR storage ring aiming at the study of the X-ray emission of $$\text {Xe}^{54+}$$ ions colliding with Xe atoms at a beam energy of 50 MeV/u. The radiation resulting from the ion–atom inter…
View article: Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem - Data
Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem - Data Open
Figures and corresponding data associated with the manuscript 'Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem' by Herbst et al.
View article: Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem - Data
Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem - Data Open
Figures and corresponding data associated with the manuscript 'Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem' by Herbst et al.
View article: Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem - Data
Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem - Data Open
Figures and corresponding data associated with the manuscript 'Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem' by Herbst et al.
View article: Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem - Data
Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem - Data Open
Figures and corresponding data associated with the manuscript 'Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem' by Herbst et al.
View article: Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem
Measuring Magnetic 1/f Noise in Superconducting Microstructures and the Fluctuation-Dissipation Theorem Open
The performance of superconducting devices like qubits, SQUIDs, and particle detectors is often limited by finite coherence times and 1/f noise. Various types of slow fluctuators in the Josephson junctions and the passive parts of these su…
View article: Towards an Intrinsic Doppler Correction for X-ray Spectroscopy of Stored Ions at CRYRING@ESR
Towards an Intrinsic Doppler Correction for X-ray Spectroscopy of Stored Ions at CRYRING@ESR Open
We report on a new experimental approach for the Doppler correction of X-rays emitted by heavy ions, using novel metallic magnetic calorimeter detectors which uniquely combine a high spectral resolution with a broad bandwidth acceptance. T…
View article: Development and characterisation of high-resolution microcalorimeter detectors for the ECHo-100k experiment
Development and characterisation of high-resolution microcalorimeter detectors for the ECHo-100k experiment Open
The goal of the ECHo experiment is a direct determination of the absolute scale of the neutrino mass by the analysis of the end-point region of the Ho-163 electron capture (EC) spectrum. The results of the first phase of the experiment, EC…
View article: X-ray Spectroscopy Based on Micro-Calorimeters at Internal Targets of Storage Rings
X-ray Spectroscopy Based on Micro-Calorimeters at Internal Targets of Storage Rings Open
With metallic-magnetic calorimeters (MMCs), promising detectors for high-precision X-ray spectrometry in atomic and fundamental physics experiments are available. In this work, we present a pilot experiment based on a maXs-30 type MMC-spec…
View article: Exploitation of the Timing Capabilities of Metallic Magnetic Calorimeters for a Coincidence Measurement Scheme
Exploitation of the Timing Capabilities of Metallic Magnetic Calorimeters for a Coincidence Measurement Scheme Open
In this report, we compare two filter algorithms for extracting timing information using novel metallic magnetic calorimeter detectors, applied to the precision X-ray spectroscopy of highly charged ions in a storage ring. Accurate timing i…
View article: Alpha backgrounds in the AMoRE-Pilot experiment
Alpha backgrounds in the AMoRE-Pilot experiment Open
View article: Muonic-Atom Spectroscopy and Impact on Nuclear Structure and Precision QED Theory
Muonic-Atom Spectroscopy and Impact on Nuclear Structure and Precision QED Theory Open
Recent progress in laser and x-ray spectroscopy of muonic atoms offers promising long-term possibilities at the intersection of atomic, nuclear and particle physics. In muonic hydrogen, laser spectroscopy measurements will determine the gr…
View article: Integration of maXs-type microcalorimeter detectors for high-resolution x-ray spectroscopy into the experimental environment at the CRYRING@ESR electron cooler
Integration of maXs-type microcalorimeter detectors for high-resolution x-ray spectroscopy into the experimental environment at the CRYRING@ESR electron cooler Open
We report on the first integration of novel magnetic microcalorimeter detectors (MMCs), developed within SPARC (Stored Particles Atomic Physics Research Collaboration), into the experimental environment of storage rings at GSI 6 6 GSI Helm…