Achim Richter

TL;DR: It is found that the oscillations in the pseudointegrable microwave cavity match the random plane-wave modeling, which is normally only appropriate for the eigenfunctions of a purely chaotic system.

TL;DR: The Facility for Antiproton and Ion Research (FAIR) will offer unique, unprecedented opportunities to investigate many of the important reactions as discussed by the authors, even far away from the valley of stability, allowing the investigation of isotopes involved in processes as exotic as the r or rp processes.

TL;DR: In this article, wavelet transforms are introduced for the extraction of scales characterizing the fine structure of the giant quadrupole resonance (ISGQR) and evaluating their relative importance.

TL;DR: In this article, the excitation-energy region up to 23 MeV in Ni-58 has been investigated with the (p,p(')) reaction at an incident energy of 172 MeV and forward angles favoring the spin-dipole mode in the continuum.

TL;DR: In two series of high-resolution coincidence experiments at the three-spectrometer facility at MAMI, the $\mathrm{H}{(e,e}^{\ensuremath{'}}{pi}}^{+})X$ and ${}^{2}$ reactions were studied to search for narrow nucleon resonances below pion threshold as discussed by the authors, and none of their measurements showed a signal for narrow resonances to a level of down to ${10}^{-}4}$ with respect to the neutron peak in the missing-mass spectra.