A5036235686- Mass Spectrometry Techniques and Applications
- Atomic and Molecular Physics
- Nuclear physics research studies
- Quantum Chromodynamics and Particle Interactions
- Atomic and Subatomic Physics Research
- Radioactive Decay and Measurement Techniques
- Neutrino Physics Research
- Astronomical and nuclear sciences
- Analytical Chemistry and Sensors
- Advanced Frequency and Time Standards
- Ion-surface interactions and analysis
- Nuclear Physics and Applications
- Superconducting and THz Device Technology
- Particle accelerators and beam dynamics
- Integrated Circuits and Semiconductor Failure Analysis
- Diamond and Carbon-based Materials Research
- Cold Atom Physics and Bose-Einstein Condensates
- Particle physics theoretical and experimental studies
- Semiconductor materials and devices
- Radioactive element chemistry and processing
- Advanced NMR Techniques and Applications
- Electrochemical Analysis and Applications
- Quantum, superfluid, helium dynamics
- History and advancements in chemistry
Max Planck Institute for Nuclear Physics
2021-2025
Max Planck Society
2021
In this Letter, we present mass-ratio measurements on highly charged <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:msup><a:mrow><a:mi>Yb</a:mi></a:mrow><a:mrow><a:mn>42</a:mn><a:mo>+</a:mo></a:mrow></a:msup></a:mrow></a:math> ions with a precision of <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mn>4</c:mn><c:mo>×</c:mo><c:msup><c:mn>10</c:mn><c:mrow><c:mo>−</c:mo><c:mn>12</c:mn></c:mrow></c:msup></c:math> and isotope-shift...
Abstract The investigation of the absolute scale effective neutrino mass remains challenging due to exclusively weak interaction neutrinos with all known particles in standard model particle physics. At present, most precise and least-model-dependent upper limit on electron antineutrino is set by Karlsruhe Tritium Neutrino Experiment (KATRIN) from analysis tritium β-decay. Another promising approach capture 163 Ho, which under using microcalorimetry Electron Capture Holmium (ECHo) HOLMES...
We present the measurements of individual bound electron $g$ factors ${^{20}\mathrm{Ne}}^{9+}$ and ${^{22}\mathrm{Ne}}^{9+}$ on relative level 0.1 parts per billion. The comparison with theory represents most stringent test bound-state QED in strong electric fields. A dedicated mass measurement results $m(^{20}\mathrm{Ne})=\phantom{\rule{0ex}{0ex}}19.992\text{ }440\text{ }168\text{ }77(9)\text{ }\text{ }\mathrm{u}$, which improves current literature value by a factor 18, disagrees 4 standard...
The atomic mass of uranium-238 has been determined to be <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mrow><a:mn>238.050</a:mn><a:mspace width="0.16em"/><a:mn>787</a:mn><a:mspace width="0.16em"/><a:mn>618</a:mn><a:mo>(</a:mo><a:mn>15</a:mn><a:mo>)</a:mo></a:mrow></a:math> u, improving the literature uncertainty by two orders magnitude. It is obtained from a measurement ratio <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"><d:mmultiscripts><d:mi...
Highly charged ions (HCIs) offer many opportunities for next-generation clock research due to the vast landscape of available electronic transitions in different charge states. The development extreme ultraviolet frequency combs has enabled search based on shorter wavelengths HCIs. However, without initial knowledge energy states, these narrow are difficult be probed by lasers. In this Letter, we provide experimental observation and theoretical calculation a long-lived state Nb-like Pb^{41+}...
The absolute atomic mass of $^{208}$Pb has been determined with a fractional uncertainty $7\times 10^{-11}$ by measuring the cyclotron-frequency ratio $R$ $^{208}$Pb$^{41+}$ to $^{132}$Xe$^{26+}$ high-precision Penning-trap spectrometer Pentatrap and computing binding energies $E_{\text{Pb}}$ $E_{\text{Xe}}$ missing 41 26 electrons, respectively, ab initio fully relativistic multi-configuration Dirac-Hartree-Fock (MCDHF) method. measured relative precision $9\times 10^{-12}$. have computed...
The Standard Model of particle physics describes the properties elementary particles and their interactions remarkably well, but in particular does not account for dark matter. Isotope-shift spectroscopy is a sensitive probe fifth forces new that illuminate matter sector. This method sets bounds on bosons couple neutrons electrons with masses keV/c2 to MeV/c2 range. With increasing spectroscopic precision, such searches are limited by uncertainties isotope understanding nuclear structure....
Nonlinearities in King plots (KP) of isotope shifts (IS) can reveal the existence beyond-Standard-Model (BSM) interactions that couple electrons and neutrons. However, it is crucial to distinguish higher-order Standard Model (SM) effects from BSM physics. We measure IS transitions ${{}^{3}P_{0}~\rightarrow~{}^{3}P_{1}}$ $\mathrm{Ca}^{14+}$ ${{}^{2}S_{1/2} \rightarrow {}^{2}D_{5/2}}$ $\mathrm{Ca}^{+}$ with sub-Hz precision as well nuclear mass ratios relative uncertainties below...
In this paper, we report on the development of a fast high-voltage switch, which is based two enhancement mode N-channel silicon carbide metal-oxide-semiconductor field-effect transistors in push-pull configuration. The switch capable switching high voltages up to 600 V capacitive loads with rise and fall times order 10 ns pulse widths ≥20 ns. Using it was demonstrated that, from charge state distribution bunches highly charged ions ejected an electron beam ion trap specific kinetic energy,...
We present the measurements of individual bound electron $g$ factors $^{20}\text{Ne}^{9+}$ and $^{22}\text{Ne}^{9+}$ on relative level $0.1\,\text{parts}$ per billion. The comparison with theory represents most stringent test bound-state QED in strong electric fields. A dedicated mass measurement results $m\left(^{20}\text{Ne}\right)=19.992\,440\,168\,77\,(9)\,\text{u}$, which improves current literature value by a factor nineteen, disagrees $4$ standard deviations precisely measured atomic...
Highly charged ions (HCIs) offer many opportunities for next-generation clock research due to the vast landscape of available electronic transitions in different charge states. The development XUV frequency combs has enabled search based on shorter wavelengths HCIs. However, without initial knowledge energy states, these narrow are difficult be probed by lasers. In this Letter, we provide experimental observation and theoretical calculation a long-lived state Nb-like Pb$^{41+}$ which could...
The atomic mass of uranium-238 has been determined to be $238.050\,787\,618(15)\,\text{u}$, improving the literature uncertainty by two orders magnitude. It is obtained from a measurement ratio $^{238}$U$^{47+}$ and $^{132}$Xe$^{26+}$ ions with an $3.5\times 10^{-12}$. was carried out Penning-trap spectrometer \textsc{Pentatrap} accompanied calculation binding energies $E_{\text{U}}$ $E_{\text{Xe}}$ 47 26 missing electrons highly charged ions, respectively. These were using \textit{ab...
The possibility of applying active feedback to a single ion in Penning trap using fully digital system is demonstrated. Previously realized systems rely on analog circuits that are susceptible environmental fluctuations and long term drifts, as well being limited the specific task they were designed for. presented implemented field-programmable gate array (FPGA)-based platform (STEMlab), offering greater flexibility, higher temporal stability, for highly dynamic variation parameters....