Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2003-06-09
Physics
Nuclear Physics
Nuclear Experiment
20 pages, 19 figures
Scientific paper
A new experiment is proposed with the aim to study eta-mesic nuclei and low-energy interactions of eta with nuclei. Two decay modes of eta produced by a photon beam inside a nucleus will be observed, namely a collisional decay \eta N \to \pi N inside the nucleus and the radiative decay \eta \to \gamma \gamma outside. In addition, a collisional decay of stopped S_{11}(1535) resonance inside the nucleus, S_{11}(1535) N \to N N, will be studied. The experiment can be performed using the tagged photon beam at ESRF with the end-point energy 1000 MeV and the GRAAL detector which includes a high-resolution BGO calorimeter and a large acceptance lead-scintillator time-of-flight wall. Some results of simulation and estimates of yields are given.
Baskov V. A.
Bocquet J.-P.
Kouznetsov V.
L'vov A. I.
Lleres A.
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