242 citations · 383 across the 13 of their papers we have counts for
13 papers
Magnetic transport and chaotic orbits of charged particles
Dirk Dubbers
I study electron movement in electromagnetic fields beyond the adiabatic approximation, using so-called Stormer theory. Some of the electron orbits are regular or integrable, but t…
Precise Measurements of the Decay of Free Neutrons
Dirk Dubbers, Bastian Märkisch
The impact of new and highly precise neutron \b{eta} decay data is reviewed. We focus on recent results from neutron lifetime, \b{eta} asymmetry, and electron-neutrino correlation…
Study of silicon photomultipliers for use in neutron decay experiments
Dirk Dubbers
Photon readout of plastic scintillators is investigated with the aim of improving the precision of neutron \b{eta} decay experiments. Neutron decay is nowadays studied with high st…
Design of the Magnet System of the Neutron Decay Facility PERC
Xiangzun Wang, Carmen Ziener, Hartmut Abele +27
The PERC (Proton and Electron Radiation Channel) facility is currently under construction at the research reactor FRM II, Garching. It will serve as an intense and clean source of…
Exotic decay channels are not the cause of the neutron lifetime anomaly
D. Dubbers, H. Saul, B. Märkisch +2
Since long neutron lifetimes measured with a beam of cold neutrons are significantly different from lifetimes measured with ultracold neutrons bottled in a trap. It is often specul…
Comment on "Neutron Lifetime and Axial Coupling Constant" by A. Czarnecki et al
Dirk Dubbers
I give a comment on arXiv:1802.01804v3 [hep-ph]
Characterization of electron detectors by time-of-flight in neutron \b{eta} decay experiments
Dirk Dubbers
Progress in neutron decay experiments requires better methods for the characterization of electron detectors. I show that for such \b{eta}-decay studies, electron time-of-flight ca…
Generation of narrow peaks in charged-particle magnetic spectroscopy
Dirk Dubbers
In spectroscopy of charged particles, narrow peaks may appear in initially smooth continuous spectra if magnetic transport of the particles is involved. As such unexpected peaks ma…
Magnetic guidance of charged particles
Dirk Dubbers
Many experiments and devices in physics use static magnetic fields to guide charged particles from a source onto a detector, and we ask the innocent question: What is the distribut…
On the Generalized Bloch Precession Equations
Hans-Juergen Stoeckmann, Dirk Dubbers
The Bloch equations, which describe spin precession and relaxation in external magnetic fields, can be generalized to include the evolution of polarization tensors of various ranks…
The neutron and its role in cosmology and particle physics
Dirk Dubbers, Michael G. Schmidt
Experiments with cold and ultracold neutrons have reached a level of precision such that problems far beyond the scale of the present Standard Model of particle physics become acce…
The point spread function of electrons in a magnetic field, and the decay of the free neutron
D. Dubbers, L. Raffelt, B. Maerkisch +2
Experiments in nuclear and particle physics often use magnetic fields to guide charged reaction products to a detector. Due to their gyration in the guide field, the particles hit…
Quark-Mixing, CKM-Unitarity
Hartmut Abele, Daniela Mund
With these proceedings, we present both a review of the experimental and theoretical information on quark-mixing with focus on the first quark generation. The papers present new fi…