In-medium Properties of eta Meson


Abstract in English

Using the Crystal Barrel(CB)/TAPS detector system at the ELSA accelerator facility in Bonn the eta photoproduction off nuclei (C, Ca, Nb and Pb) was studied via the hadronic decay channel eta -> pi^0pi^0eta . Recent results on the in-medium properties of the eta-meson, derived from the transparency ratio measurements, are presented. The absorption of the eta-meson in nuclear matter is compared to the properties of other mesons (eta, omega).

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