Relatore
Sig.
Wojciech Krzemien
(Jagiellonian University)
Descrizione
We conduct a search for the 4He-eta bound state with WASA-at-COSY facility, via a measurement
of the excitation functions for the dd -> 3-He p pi- reaction, where the outgoing p-pi pairs originate from the conversion of the eta meson on a nucleon inside the He nucleus. In June, 2008 first measurements of the excitation functions for the dd -> 3He p pi reaction were performed. In the experiment we used a slowly ramped COSY deutron beam, scanning the range of momenta corresponding to the variation of the excess energy for the 4He-eta system from - 60 MeV to 20 MeV.
The final results from the analysis will be presented.
Autore principale
Sig.
Wojciech Krzemien
(Jagiellonian University)
