Search for the 4He-η bound state in dd → (4He-η)bound → 3Henπ 0 and dd → (4He-η)bound → 3Hepπ− reactions with the WASA-at-COSY facility
1 M. Smoluchowski Institute of Physics, Jagiellonian University, Cracow, Poland
2 Institut für Kernphysik, Forschungszentrum Jülich, Germany
a e-mail: email@example.com
Published online: 26 November 2014
In November 2010, the search for the 4He-η bound state was performed with high statistics and high acceptance with the WASA-at-COSY facility using a ramped beam technique. The signature of η - mesic nuclei is searched for in the measured excitation functions for the two reaction channels: dd → 3Henπ0 and dd → 3Hepπ− near the η production threshold. This report includes the description of the experimental method and the status of the data analysis.
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