During its long-lasting history, the Λ (1405) has become a benchmark for our understanding
of the SU (3) hadron dynamics. Starting with its theoretical prediction and later experimental …

This review covers the modern era of experimental kaonic atom studies, encompassing 20
years of activity, defined by breakthroughs in technological developments which allowed …

The K¯ N system at threshold is a sensitive testing ground for low energy QCD, especially
for the explicit chiral symmetry breaking. Therefore, we have measured the K-series X-rays …

We have measured the shift and width of the kaonic hydrogen 1 s state due to the KN strong
interaction. We have observed, for the first time, distinct K-series kaonic hydrogen x rays with …

The present paper is devoted to the computation of two-phase flows using the two-fluid
approach. The overall model is hyperbolic and has no conservative form. No instantaneous …

By using the non-relativistic effective Lagrangian approach to bound states, a complete
expression for the isospin-breaking corrections to the energy levels and the decay widths of …

We have measured the K-series x rays from kaonic hydrogen atoms and have succeeded for
the first time in observing a distinct K α peak. The L x-ray peak has also been observed. The …

Kaonic hydrogen atoms provide a unique laboratory to probe the kaon–nucleon strong
interaction at the energy threshold, allowing an investigation of the interplay between …

The new era in X-ray spectroscopy of exotic atoms is based on high-resolution reflection-
type crystal spectrometers, state-of-the-art X-ray detectors, and sophisticated set-ups to stop …

Experimental studies of antiprotonic-hydrogen atoms have recently made great progress
following the commissioning of the low-energy antiproton facility LEAR at CERN in 1983. At …