Institut für Kernphysik

Aug 23, 2024 | pubs.aip.org | Institut für Kernphysik |Technische Universität Darmstadt |East Lansing |Physikalisch-Technische Bundesanstalt

Topics Electrical equipment, Doppler effect, High voltage technology, Collinear laser spectroscopy, Hyperfine structure, Isotopic shift, Ion source Long-term stable high-voltage sources are key for a variety of modern high-precision experiments: in particle physics, e.g., for the determination of the neutrino mass by measuring the beta-decay electron-end point energy1,2 or for the operation of large-scale calorimeters;3 in nuclear physics, e.g., for the determination of masses4–6 or charge...

Jul 11, 2024 | onlinelibrary.wiley.com | Los Alamos |Institut für Kernphysik |TU Darmstadt |Forschungs-Neutronenquelle Heinz Maier-Leibnitz

Fig. 4(a) shows the background-corrected intensity measured with only five pixel columns of the imaging detector setup (in red) versus d spacing at and L2 = 11.3 cm, including the GSAS Rietveld fit in green. As for the 3He tubes too, the background was determined by fitting it with GSAS. Comparing the results with data measured simultaneously with a single 3He detector panel consisting of 24 3He tubes at L2 = 83 cm, depicted in Fig.

Jan 30, 2024 | link.aps.org | Deutsches Elektronen-Synchrotron |Institut für Kernphysik |Technische Universität Darmstadt |Carnegie Mellon

A lattice QCD computation of the coupled channel πΣ–K¯N scattering amplitudes in the Λ(1405) region is detailed. Results are obtained using a single ensemble of gauge field configurations with Nf=2+1 dynamical quark flavors and mπ≈200  MeV and mK≈487  MeV. Hermitian correlation matrices using both single baryon and meson-baryon interpolating operators for a variety of different total momenta and irreducible representations are used.