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 facilityM. Skurzok, W. Krzemien and P. MoskalEPJ Web of Conferences, 81 (2014) 02020DOI: https://doi.org/10.1051/epjconf/20148102020