We review the theory of hadronic atoms in QCD+ QED, based on a non-relativistic effective
Lagrangian framework. We first provide an introduction to the theory, and then describe …

The goal of the DIRAC experiment at CERN (PS212) is to measure the π+ π− atom lifetime
with 10% precision. Such a measurement would yield a precision of 5% on the value of the …

The DIRAC experiment at CERN has achieved a sizeable production of π+ π− atoms and
has significantly improved the precision on its lifetime determination. From a sample of 21 …

As a continuation of the author's earlier work (Gaseous Radiation Detectors: Fundamental
and Applications, Cambridge University Press 2014), this book describes in detail the recent …

The goal of the DIRAC experiment at CERN is to measure with high precision the lifetime of
the π+ π− atom (A 2π), which is of order 3× 10− 15 s, and thus to determine the s-wave ππ …

We present evidence for the first observation of electromagnetically bound π±K∓-pairs (πK-
atoms) with the DIRAC experiment at the CERN-PS. The πK-atoms are produced by the 24 …

We investigate the gas gain behaviour of a triple-GEM configuration in gas mixtures of
argon, krypton and xenon with 10% and 30% of carbon dioxide at pressures between 1 and …

A novel technology for the detection of single photons has been developed and
implemented in 2016 in the Ring Imaging Cherenkov (RICH) detector of the COMPASS …

Abstract The Micro-Pattern Gaseous Detectors, introduced about 25 years ago, represent
the new generation of the gaseous ionising particle detectors. The main motivation at the …

The precise measurements of π+ π-and πK atom lifetime allow to check the predictions of
Chiral Perturbation Theory for the pion-pion s-wave scattering lengths with isospin 0 and 2 …