The composite nature of baryons manifests itself in the existence of a rich spectrum of
excited states, in particular in the important mass region 1–2 GeV for the light-flavoured …

This review treats the advances in Light Baryon Spectroscopy of the last two decades, which
were mainly obtained by measuring meson-production reactions at photon facilities all over …

Information on the size and shape of the neutron skin on Pb 208 is extracted from coherent
pion photoproduction cross sections measured using the Crystal Ball detector together with …

The photoproduction of 2 π 0 mesons off protons was studied with the Crystal Barrel/TAPS
experiment at the electron accelerator ELSA in Bonn. The energy of photons produced in a …

The Dalitz decays η→ e+ e− γ and ω→ π 0 e+ e− have been measured in the γ p→ η p and
γ p→ ω p reactions, respectively, with the A2 tagged-photon facility at the Mainz Microtron …

We review the last two decades of using photon beams to measure the production of
mesons, and in particular the information that can be obtained on the spectrum of light, non …

The production of η and η′ mesons in photon-and hadron-induced reactions on free and
quasi-free nucleons and on nuclei is reviewed. The extensive database on γ N→ η N, for …

The Dalitz decay η→ e+ e− γ has been measured in the γ p→ η p reaction with the Crystal
Ball and TAPS multiphoton spectrometers, together with the photon-tagging facility at the …

The coherent reaction, γ d→ π 0 π 0 d was studied with the BGOOD experiment at ELSA
from threshold to a centre-of-mass energy of 2850 MeV. A full kinematic reconstruction was …

We report the first experimental measurements of the nine 1-fold differential cross sections
for the γ p→ π+ π− p reaction, obtained with the CLAS detector at Jefferson Laboratory. The …