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Open AccessThe BGOOD experimental setup at ELSA
The BGOOD experiment at the ELSA facility in Bonn has been commissioned within the framework of an international collaboration. The experiment pursues a systematic investigation of non-strange and strange meso...
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Open AccessExperimental study of the \( \gamma p \rightarrow K^{0}\Sigma^{+}\), \( \gamma n \rightarrow K^{0} \Lambda\), and \( \gamma n \rightarrow K^{0} \Sigma^{0}\) reactions at the Mainz Microtron
This work measured \( \mathrm{d}\sigma/\mathrm{d}\Omega\)dσ/dΩ for neutral kaon photoproduction reactions from threshold up to a c.m. energy of 1855MeV, focussing specifically on the $ \gamma p\rightarrow K^0\Sigma...
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Determination of the scalar polarizabilities of the proton using beam asymmetry \(\Sigma_{3}\) in Compton scattering
The scalar dipole polarizabilities, \(\alpha_{E1}\) ...
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Open AccessPhoton asymmetry measurements of \(\overrightarrow{\gamma}p \rightarrow \pi^{0} p\) for \(E_{\gamma}=\) 320-650 MeV
High-statistics measurements of the photon asymmetry \(\Sigma\) Σ ...
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Photoproduction of \(\eta\) \(\pi\) pairs off nucleons and deuterons
Quasi-free photoproduction of \(\pi\eta\) -pairs has been investigated from threshold up to incident photon energies of ...
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Open AccessPhotoproduction of \( \pi^{0}\) -pairs off protons and off neutrons
Total cross sections, angular distributions, and invariant-mass distributions have been measured for the photoproduction of $ \pi^{0}\...
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Open AccessFirst measurement of the \(\Sigma\) beam asymmetry in \(\eta^{\prime}\) photoproduction off the proton near threshold
The \( \Sigma\) beam asymmetry in $ \eta^...
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Helicity dependence of the γ 3He → πX reactions in the Δ(1232) resonance region
The helicity dependences of the differential cross sections for the semi-inclusive γ 3He → π0 X and γ 3He → π± X reactions have been measured for th...
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Open AccessMeasurement of the beam-helicity asymmetry I⊙ in the photoproduction of \( \pi^{0}\) \( \pi^{\pm}\) pairs off protons and off neutrons
Beam-helicity asymmetries have been measured at the MAMI accelerator in Mainz for the photoproduction of mixed-charge pion pairs in the reactions ...
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Open AccessQuasi-free photoproduction of η-mesons off 3He nuclei
Quasi-free photoproduction of η-mesons has been measured off nucleons bound in 3He nuclei for incident photon energies from the threshold region up to 1.4 GeV. The experiment was performed at the tagged photon fa...
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In-medium modifications of the ω meson near the production threshold
The in-medium properties of the ω meson were investigated at the MAMI-C electron accelerator using the Crystal Ball/TAPS detector system to identify ω mesons through their ω → π 0 ...
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Open AccessMeasurements of 12C \((\vec{\gamma},pp)\) photon asymmetries for \(E_{\gamma}=200\) –450 MeV
The 12C \((\vec{\gamma},pp)\) reaction has been studied in the photon energy range 200-450 MeV at the Mainz microtron MA...