Nuclear reactions induced by photons play a vital role for very different aspects of basic
research and applications in physics. They are a key ingredient for the synthesis of nuclei in …

We review the current state of knowledge of the nucleon polarizabilities and of their role in
nucleon Compton scattering and in hydrogen spectrum. We discuss the basic concepts, the …

The γ p→ η p reaction has been measured with the Crystal Ball and TAPS multiphoton
spectrometers in the energy range from the production threshold of 707 MeV to 1.4 GeV (1 …

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 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 …

Differential and total cross sections for the quasifree reactions γ p→ η p and γ n→ η n have
been determined at the MAMI-C electron accelerator by using a liquid deuterium target …

The dynamics of the η→ 3 π 0 decay have been studied with the Crystal Ball multiphoton
spectrometer and the TAPS calorimeter. Bremsstrahlung photons produced by the 1.5-GeV …

Coherent photoproduction of η-mesons off 3He, ie the reaction γ3He→ η3He, has been
investigated in the near-threshold region. The experiment was performed at the Glasgow …

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 …

Measurements of γ p→ K+ Λ and γ p→ K+ Σ 0 cross-sections have been obtained with the
photon tagging facility and the Crystal Ball calorimeter at MAMI-C. The measurement uses a …