Search for He-eta bound states with the WASA-at-COSY facility

by Ms Magdalena Skurzok (Jagiellonian University)

Friday 9 Dec 2016, 11:00 → 12:30 Europe/Rome

Aula Leale

The existence of eta-mesic nuclei in which the eta meson is bound in a nucleus by means of the strong interaction was postulated already in 1986 but it has not been yet confirmed experimentally. The discovery of this new kind of an exotic nuclear matter would be very important as it might allow for a better understanding of the eta meson structure and its interaction with nucleons. The search for eta-mesic helium is carried out with high statistics and high acceptance with the WASA detector, installed at the COSY accelerator in the Research Center Juelich. The talk will include description of the experimental method used at WASA and the results of the data analysis.